{"product_id":"ugreen-cm847-usb4-2-bay-m-2-nvme-ssd-enclosure-with-offline-clone-raid-40gbps-dual-nvme-storage-dock-65733eu","title":"UGREEN CM847 USB4 2-Bay M.2 NVMe SSD Enclosure with Offline Clone \u0026 RAID – 40Gbps Dual NVMe Storage Dock (65733EU)","description":"\u003cstyle\u003e\/* UGREEN India product description layout *\/\n.ugd-story { --ugd-acc: #169b45; --ugd-ink: #14181c; --ugd-text: #4a5258; --ugd-line: #e3e6e8; --ugd-soft: #f4f5f6; color: var(--ugd-ink); font: 16px \/ 1.7 -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Arial, sans-serif; width: 100%; max-width: 1200px; margin: 0px auto; container-type: inline-size; text-align: left; overflow-wrap: anywhere; }\n.ugd-story * { box-sizing: border-box; }\n.ugd-story :is(h2, h3, h4, p, figure, ul, ol, dl, dd) { margin: 0px; padding: 0px; }\n.ugd-story :is(h2, h3, h4) { color: var(--ugd-ink); font-weight: 700; letter-spacing: -0.02em; text-transform: none; }\n.ugd-story h2 { font-size: clamp(26px, 4.2cqi, 42px); line-height: 1.15; }\n.ugd-story h3 { font-size: clamp(21px, 3cqi, 30px); line-height: 1.2; }\n.ugd-story h4 { font-size: 18px; line-height: 1.35; }\n.ugd-story p { color: var(--ugd-text); font-size: 16px; line-height: 1.7; }\n.ugd-story p + p { margin-top: 10px; }\n.ugd-story img { display: block; width: 100%; height: auto; border: 0px; border-radius: 14px; background: var(--ugd-soft); }\n.ugd-story a { color: var(--ugd-acc); }\n.ugd-story .ugd-eyebrow { display: block; color: var(--ugd-acc); font-size: 12px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 10px; }\n.ugd-story .ugd-section { padding: clamp(36px, 6cqi, 64px) 0px; border-top: 1px solid var(--ugd-line); }\n.ugd-story .ugd-head { max-width: 720px; margin-bottom: 24px; }\n.ugd-story .ugd-head p { margin-top: 10px; }\n.ugd-story .ugd-hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(20px, 4cqi, 48px); align-items: center; background: var(--ugd-soft); border-radius: 20px; padding: clamp(22px, 4cqi, 48px); }\n.ugd-story .ugd-hero p { margin-top: 14px; font-size: 17px; }\n.ugd-story .ugd-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; list-style: none; }\n.ugd-story .ugd-chips li { background: rgb(255, 255, 255); border: 1px solid var(--ugd-line); border-radius: 999px; padding: 5px 12px; font-size: 13px; font-weight: 600; color: var(--ugd-ink); }\n.ugd-story .ugd-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0px; margin: 16px 0px 0px; border: 1px solid var(--ugd-line); border-radius: 16px; overflow: hidden; }\n.ugd-story .ugd-stats div { padding: 16px 18px; border-left: 1px solid var(--ugd-line); }\n.ugd-story .ugd-stats div:first-child { border-left: 0px; }\n.ugd-story .ugd-stats b { display: block; font-size: clamp(20px, 2.8cqi, 28px); line-height: 1.1; color: var(--ugd-ink); }\n.ugd-story .ugd-stats span { display: block; font-size: 13px; color: var(--ugd-text); margin-top: 4px; }\n.ugd-story .ugd-nav { display: flex; gap: 8px; overflow-x: auto; padding: 16px 0px; margin: 0px; list-style: none; scrollbar-width: none; }\n.ugd-story .ugd-nav::-webkit-scrollbar { display: none; }\n.ugd-story .ugd-nav a { flex: 0 0 auto; display: block; padding: 7px 14px; border-radius: 999px; background: var(--ugd-soft); color: var(--ugd-ink); font-size: 13px; font-weight: 600; text-decoration: none; white-space: nowrap; }\n.ugd-story .ugd-tests { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; list-style: none; }\n.ugd-story .ugd-tests li { background: var(--ugd-soft); border-radius: 14px; padding: 16px; }\n.ugd-story .ugd-tests b { display: block; font-size: clamp(24px, 3.2cqi, 32px); line-height: 1; color: var(--ugd-acc); }\n.ugd-story .ugd-tests strong { display: block; margin-top: 8px; font-size: 16px; }\n.ugd-story .ugd-tests span { display: block; font-size: 13px; color: var(--ugd-text); margin-top: 2px; line-height: 1.45; }\n.ugd-story .ugd-note { font-size: 13px !important; margin-top: 12px; }\n.ugd-story .ugd-feature { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(18px, 4cqi, 48px); align-items: center; }\n.ugd-story .ugd-feature + .ugd-feature { margin-top: clamp(28px, 5cqi, 56px); }\n.ugd-story .ugd-feature.ugd-rev figure { order: 2; }\n.ugd-story .ugd-feature ul { margin-top: 14px; padding-left: 20px; }\n.ugd-story .ugd-feature li { color: var(--ugd-text); margin-top: 6px; }\n.ugd-story .ugd-uses { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }\n.ugd-story .ugd-uses figcaption { font-weight: 600; margin-top: 8px; font-size: 15px; }\n.ugd-story .ugd-box { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(18px, 4cqi, 40px); align-items: start; }\n.ugd-story .ugd-box ol { columns: 2; column-gap: 24px; padding-left: 22px; }\n.ugd-story .ugd-box li { color: var(--ugd-text); break-inside: avoid; margin-bottom: 6px; }\n.ugd-story .ugd-specs { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--ugd-line); }\n.ugd-story .ugd-specs div { display: grid; grid-template-columns: 42% 1fr; gap: 12px; padding: 12px 0px; border-bottom: 1px solid var(--ugd-line); }\n.ugd-story .ugd-specs div:nth-child(2n+1) { padding-right: 24px; }\n.ugd-story .ugd-specs dt { font-weight: 600; font-size: 14px; }\n.ugd-story .ugd-specs dd { color: var(--ugd-text); font-size: 14px; }\n.ugd-story details { border-bottom: 1px solid var(--ugd-line); }\n.ugd-story summary { cursor: pointer; list-style: none; padding: 16px 32px 16px 0px; font-weight: 600; font-size: 16px; position: relative; }\n.ugd-story summary::-webkit-details-marker { display: none; }\n.ugd-story summary::after { content: \"+\"; position: absolute; right: 4px; top: 12px; font-size: 22px; color: var(--ugd-acc); }\n.ugd-story details[open] summary::after { content: \"–\"; }\n.ugd-story details p { padding: 0px 0px 16px; }\n.ugd-story .ugd-trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; list-style: none; background: var(--ugd-ink); border-radius: 18px; padding: clamp(18px, 3cqi, 28px); }\n.ugd-story .ugd-trust li { color: rgb(255, 255, 255); font-size: 14px; line-height: 1.45; }\n.ugd-story .ugd-trust b { display: block; color: rgb(255, 255, 255); font-size: 15px; }\n.ugd-story .ugd-trust span { color: rgb(185, 194, 199); }\n@container (max-width: 700px) {\n.ugd-story .ugd-hero, .ugd-story .ugd-feature, .ugd-story .ugd-box { grid-template-columns: 1fr; }\n.ugd-story .ugd-hero figure { order: -1; }\n.ugd-story .ugd-feature.ugd-rev figure { order: 0; }\n.ugd-story .ugd-stats { grid-template-columns: 1fr 1fr; }\n.ugd-story .ugd-stats div:nth-child(3) { border-left: 0px; }\n.ugd-story .ugd-stats div:nth-child(n+3) { border-top: 1px solid var(--ugd-line); }\n.ugd-story .ugd-tests { grid-template-columns: 1fr 1fr; }\n.ugd-story .ugd-uses { grid-template-columns: 1fr 1fr; }\n.ugd-story .ugd-uses figure:last-child { grid-column: 1 \/ -1; }\n.ugd-story .ugd-specs { grid-template-columns: 1fr; }\n.ugd-story .ugd-specs div:nth-child(2n+1) { padding-right: 0px; }\n.ugd-story .ugd-trust { grid-template-columns: 1fr 1fr; }\n}\n@container (max-width: 380px) {\n.ugd-story .ugd-box ol { columns: 1; }\n}\n.ugd-story .ugd-feature.ugd-noimg { grid-template-columns: 1fr; max-width: 780px; }\n.ugd-story .ugd-stats.ugd-s2 { grid-template-columns: 1fr 1fr; }\n.ugd-story .ugd-uses figcaption, .ugd-story figure figcaption { color: var(--ugd-ink); }\n.ugd-story .ugd-box.ugd-noimg { grid-template-columns: 1fr; }\n.product-details rte-formatter \u003e .ugd-wide { max-width: none !important; width: 100% !important; }\n.product-details rte-formatter \u003e .ugd-story.ugd-wide { max-width: 1200px !important; }\n.ugd-story ul.ugd-nav,.ugd-story ul.ugd-chips,.ugd-story ul.ugd-trust{list-style:none!important;padding-left:0!important;margin-left:0!important}.ugd-story ul.ugd-nav li,.ugd-story ul.ugd-chips li,.ugd-story ul.ugd-trust li{list-style:none!important}.ugd-story ul.ugd-nav li::before,.ugd-story ul.ugd-chips li::before,.ugd-story ul.ugd-trust li::before,.ugd-story ul.ugd-nav li::marker,.ugd-story ul.ugd-chips li::marker{content:none!important;display:none!important}\n\u003c\/style\u003e\u003cdiv class=\"ugd-story ugd-wide\"\u003e\n\u003cheader class=\"ugd-hero\"\u003e\u003cdiv\u003e\n\u003cspan class=\"ugd-eyebrow\"\u003eProduct introduction\u003c\/span\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eUGREEN CM847, model 65733EU, is a desktop USB4 enclosure for two compatible M.2 NVMe solid-state drives. It can present installed storage to a computer for high-speed work and can also perform an offline clone from the bay marked Source to the bay marked Target.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/header\u003e\u003cdiv class=\"ugd-stats\" style=\"grid-template-columns:repeat(3,1fr)\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eUSB4\u003c\/b\u003e\u003cspan\u003eHost interface\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e2 × M.2 NVMe\u003c\/b\u003e\u003cspan\u003eDrive bays\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eRAID capability\u003c\/b\u003e\u003cspan\u003eRAID\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cnav\u003e\u003cul class=\"ugd-nav\"\u003e\n\u003cli\u003e\u003ca href=\"#ugd-features\"\u003eFeatures\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#ugd-specs\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#ugd-faqs\"\u003eFAQs\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/nav\u003e\u003cdiv class=\"ugd-section\" id=\"ugd-features\"\u003e\n\u003cdiv class=\"ugd-head\"\u003e\n\u003cspan class=\"ugd-eyebrow\"\u003eFeatures\u003c\/span\u003e\u003ch3\u003eWhat it does well.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eKey features\u003c\/h4\u003e\n\u003cp\u003eAt a glance\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-rev ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eTwo drive bays, one USB4 host path and dedicated controls\u003c\/h4\u003e\n\u003cp\u003ePort-by-port clarity\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBay A \/ Source.\u003c\/b\u003e Install the source M.2 NVMe drive here for offline cloning only after confirming the label on the unit.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBay B \/ Target.\u003c\/b\u003e The target receives the clone and can be overwritten. Confirm capacity and identity before starting.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eUSB4 host connection.\u003c\/b\u003e Links the enclosure to a compatible computer at up to the mutually negotiated rate, with 40Gbps as the interface maximum.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMode and clone controls.\u003c\/b\u003e Use only according to the printed labels\/manual; do not change a RAID-style mode while data is mounted or unprotected.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eOffline cloning is directional and destructive to the target\u003c\/h4\u003e\n\u003cp\u003eClone workflow\u003c\/p\u003e\n\u003cp\u003ethis product image labels bay A as Source and bay B as Target. Offline cloning copies the source drive onto the target without using a computer data session. It is not a bidirectional merge, selective file copy or backup that preserves existing target data.\u003c\/p\u003e\n\u003cp\u003eBefore starting, identify both drives outside the enclosure, confirm that the target is appropriate for a full-device copy and keep a separate backup. Do not remove power, press mode controls or disturb either drive until the device reports completion according to its indicator sequence.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSource data is copied to Target, not the reverse.\u003c\/li\u003e\n\u003cli\u003eExisting target data can be overwritten.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-rev ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eUSB4 bandwidth and active cooling support sustained storage work\u003c\/h4\u003e\n\u003cp\u003eThermal and link management\u003c\/p\u003e\n\u003cp\u003eThe aluminium shell spreads heat while an active fan moves air through the enclosure. NVMe drives can still throttle when controller temperature rises, especially during a full clone or long write, so keep the vents uncovered and allow the unit to cool before handling internal drives.\u003c\/p\u003e\n\u003cp\u003eThe 40Gbps label describes the host interface. It is not a guaranteed single-drive or file-copy speed and cannot override the SSD, host, filesystem or cable. Test performance with the included\/cable and a direct compatible host port before adding adapters.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKeep inlet and outlet vents clear.\u003c\/li\u003e\n\u003cli\u003eEject mounted volumes before disconnecting USB4.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eUse scenarios\u003c\/h4\u003e\n\u003cp\u003eReal-world applications\u003c\/p\u003e\n\u003cp\u003eChoose this model when its connections and limits match the workflow below.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDual-drive workspace.\u003c\/b\u003e Access two compatible NVMe SSDs from one USB4 host for organised project and scratch storage.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOffline migration.\u003c\/b\u003e Clone a complete source SSD to an appropriate target without using a computer data session.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMedia scratch storage.\u003c\/b\u003e Use fast external NVMe media for high-throughput project files when the host, cable and SSDs support the workload.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBench verification.\u003c\/b\u003e Install and test compatible NVMe drives while monitoring identity, temperature and health before deployment.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-box ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eSetup and usability guidance\u003c\/h4\u003e\n\u003cp\u003ePractical connection order\u003c\/p\u003e\n\u003cp\u003eA deliberate connection order makes capability checks and troubleshooting easier.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eRecord the model as CM847 \/ 65733EU and read the manual before opening the enclosure.\u003c\/li\u003e\n\u003cli\u003eBack up all data on any drive that will be installed.\u003c\/li\u003e\n\u003cli\u003eVerify each SSD interface, key, dimensions and intended source\/target role.\u003c\/li\u003e\n\u003cli\u003eDisconnect host data and power before installing or removing drives.\u003c\/li\u003e\n\u003cli\u003eFit drives and any thermal interface parts without bending the module.\u003c\/li\u003e\n\u003cli\u003eFor computer access, connect directly to a compatible USB4 host and allow the OS to detect the storage.\u003c\/li\u003e\n\u003cli\u003eFor offline clone, confirm A\/Source and B\/Target, then follow the button and indicator sequence without interruption.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-rev ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eCompatible devices and systems\u003c\/h4\u003e\n\u003cp\u003eHost and peripheral fit\u003c\/p\u003e\n\u003cp\u003eConnector shape alone is not enough: the host port, operating system, cable, display and peripheral must support the required function.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eUSB4 computers.\u003c\/b\u003e Compatible Windows, macOS or Linux systems with USB4-class data support offer the highest stated interface ceiling.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFallback USB-C links.\u003c\/b\u003e A slower compatible USB-C data host may negotiate a lower rate; connector shape does not guarantee 40Gbps.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eM.2 NVMe drives.\u003c\/b\u003e Use only compatible NVMe SSDs that match the enclosure key, interface and supported dimensions stated in its manual.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFilesystems and RAID.\u003c\/b\u003e The operating system must support the chosen disk format or array presentation; initialization may be required for new drives.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eWhat this product does\u003c\/h4\u003e\n\u003cp\u003eFunction scope\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHouses two compatible M.2 NVMe SSDs in one USB4 desktop enclosure.\u003c\/li\u003e\n\u003cli\u003eProvides a host interface rated up to 40Gbps.\u003c\/li\u003e\n\u003cli\u003ePerforms an offline one-touch clone from the labelled source bay to target bay.\u003c\/li\u003e\n\u003cli\u003eOffers RAID capability when configured according to the unit manual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-rev ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eWhat this product does not do\u003c\/h4\u003e\n\u003cp\u003eBoundaries that prevent a mismatch\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIt does not include either SSD.\u003c\/li\u003e\n\u003cli\u003eIt does not make a SATA M.2 drive compatible merely because it fits physically.\u003c\/li\u003e\n\u003cli\u003eIt does not guarantee 40Gbps application or file speed.\u003c\/li\u003e\n\u003cli\u003eIt does not preserve existing target data during a full offline clone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eWhat to do\u003c\/h4\u003e\n\u003cp\u003eRecommended practice\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKeep an independent backup before clone or RAID operations.\u003c\/li\u003e\n\u003cli\u003eLabel source and target drives before installation.\u003c\/li\u003e\n\u003cli\u003eUse a direct compatible USB4 host connection for performance testing.\u003c\/li\u003e\n\u003cli\u003eKeep fan vents clear and place the enclosure on a hard surface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-rev ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eWhat not to do\u003c\/h4\u003e\n\u003cp\u003eAvoid common mistakes\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDo not guess the RAID mode or change a switch while volumes are mounted.\u003c\/li\u003e\n\u003cli\u003eDo not reverse Source and Target during offline cloning.\u003c\/li\u003e\n\u003cli\u003eDo not remove power during a clone, rebuild or write.\u003c\/li\u003e\n\u003cli\u003eDo not install an unverified SATA M.2 drive.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eWarnings and limitations\u003c\/h4\u003e\n\u003cp\u003eRead before use\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCheck before connecting or ordering.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWarning \/ limitation 1.\u003c\/b\u003e Offline cloning can irreversibly overwrite the target drive.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWarning \/ limitation 2.\u003c\/b\u003e Changing storage mode can require reinitialization and can make existing data inaccessible.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWarning \/ limitation 3.\u003c\/b\u003e An NVMe SSD can become hot during sustained writes; allow cooling before handling.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWarning \/ limitation 4.\u003c\/b\u003e USB4 performance varies with host, cable, SSD, filesystem, thermals and simultaneous drive activity.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe live variant SKU field is blank; match CM847 and 65733EU on the title, enclosure or retail package.\u003c\/li\u003e\n\u003cli\u003eSSDs are not included.\u003c\/li\u003e\n\u003cli\u003eUse M.2 NVMe drives only; do not assume a physically similar SATA M.2 drive is supported.\u003c\/li\u003e\n\u003cli\u003eVerify supported key, length, capacity and any required thermal pad in the manual before installation.\u003c\/li\u003e\n\u003cli\u003eOffline clone is Source-to-Target and can overwrite the entire target.\u003c\/li\u003e\n\u003cli\u003eBack up both drives before any mode change, initialization or cloning operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ugd-section\" id=\"ugd-specs\"\u003e\n\u003cdiv class=\"ugd-head\"\u003e\n\u003cspan class=\"ugd-eyebrow\"\u003eSpecifications\u003c\/span\u003e\u003ch3\u003eAt a glance.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdl class=\"ugd-specs\"\u003e\n\n\u003cdiv\u003e\n\u003cdt\u003eBrand \/ model\u003c\/dt\u003e\n\u003cdd\u003eUGREEN CM847 \/ 65733EU\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eProduct type\u003c\/dt\u003e\n\u003cdd\u003eDual-bay M.2 NVMe SSD enclosure \/ storage dock\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eHost interface\u003c\/dt\u003e\n\u003cdd\u003eUSB4, up to 40Gbps\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eDrive bays\u003c\/dt\u003e\n\u003cdd\u003e2 × M.2 NVMe\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eOffline clone\u003c\/dt\u003e\n\u003cdd\u003eOne-touch Source A to Target B\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eRAID\u003c\/dt\u003e\n\u003cdd\u003eRAID capability; modes and switch sequence must be checked in the unit manual\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eCooling\u003c\/dt\u003e\n\u003cdd\u003eActive fan plus aluminium enclosure\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eIncluded storage\u003c\/dt\u003e\n\u003cdd\u003eNone; SSDs not included\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eHost requirement\u003c\/dt\u003e\n\u003cdd\u003eCompatible USB data host; USB4-class host\/cable required for the stated interface ceiling\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eData safety\u003c\/dt\u003e\n\u003cdd\u003eBackup required before clone, mode change or initialization\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eIn the box\u003c\/dt\u003e\n\u003cdd\u003e1 × UGREEN CM847 \/ 65733EU dual-bay USB4 NVMe enclosure.\u003cbr\u003e1 × USB-C host cable as shown with this product.\u003cbr\u003eDrive-installation parts and documentation only as supplied with the retail unit.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003c\/dl\u003e\n\u003cp class=\"ugd-note\"\u003eModel-specific data\u003c\/p\u003e\n\u003cp class=\"ugd-note\"\u003eIn-box information\u003c\/p\u003e\n\u003cp class=\"ugd-note\"\u003eNo M.2 NVMe SSD is included. Screws, thermal pads, power equipment and manual contents should be checked against the sealed regional package before installation; the current record does not safely enumerate them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ugd-section\" id=\"ugd-faqs\"\u003e\n\u003cdiv class=\"ugd-head\"\u003e\n\u003cspan class=\"ugd-eyebrow\"\u003eFAQs\u003c\/span\u003e\u003ch3\u003eQuestions buyers ask.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdetails\u003e\u003csummary\u003eAre SSDs included with CM847?\u003c\/summary\u003e\u003cp\u003eNo. The enclosure is supplied without SSDs.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it support SATA M.2 drives?\u003c\/summary\u003e\u003cp\u003ethis product is described for M.2 NVMe. Do not install a SATA M.2 drive unless the manual explicitly lists it.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWill every USB-C port run at 40Gbps?\u003c\/summary\u003e\u003cp\u003eNo. The host and cable must support a USB4-class link. A slower compatible port negotiates a lower rate.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs 40Gbps the file-copy speed?\u003c\/summary\u003e\u003cp\u003eNo. It is the host-interface maximum. SSD, bridge, host, filesystem, files and temperature determine practical performance.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhich direction does offline clone run?\u003c\/summary\u003e\u003cp\u003emedia labels bay A as Source and bay B as Target. Confirm those labels on your unit before starting.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWill offline clone preserve files already on the target?\u003c\/summary\u003e\u003cp\u003eNo. Treat the operation as destructive to the target and keep a separate backup.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I clone a larger source to a smaller target?\u003c\/summary\u003e\u003cp\u003eDo not assume so. A full-device clone normally requires an appropriate target capacity; confirm the manual before starting.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhich RAID modes are supported?\u003c\/summary\u003e\u003cp\u003eThe product advertises RAID capability, but this description does not guess the mode matrix. Follow the labels and manual supplied with CM847.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhy is a new SSD not visible in the operating system?\u003c\/summary\u003e\u003cp\u003eIt may need initialization, or the drive\/interface may be incompatible. Verify the disk identity and enclosure support before formatting anything.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes the fan prevent all thermal throttling?\u003c\/summary\u003e\u003cp\u003eNo. Active cooling helps, but sustained transfers, ambient temperature and SSD design can still reduce speed.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs RAID a backup?\u003c\/summary\u003e\u003cp\u003eNo. RAID can change capacity or availability characteristics, but it does not replace a separate, copy of important data.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cscript\u003e(function(){function m(){var s=document.querySelector(\".ugd-story,.ht-story,.ava-story\");if(!s)return;var d=s.closest(\".product-block--description\");var a=document.querySelector(\"article.product--outer\");if(!d||!a||d.closest(\".ugd-fullwrap\"))return;var w=document.createElement(\"div\");w.className=\"ugd-fullwrap\";w.style.cssText=\"max-width:1200px;margin:40px auto 0;padding:0 24px;box-sizing:border-box;width:100%\";w.appendChild(d);a.parentNode.insertBefore(w,a.nextSibling);}if(document.readyState!==\"loading\")m();else document.addEventListener(\"DOMContentLoaded\",m);})();\u003c\/script\u003e","brand":"UGREEN","offers":[{"title":"Default Title","offer_id":44100037148771,"sku":"65733EU","price":19999.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/3780\/4899\/files\/65733_01.jpg?v=1775329060","url":"https:\/\/ugreenindia.com\/hi\/products\/ugreen-cm847-usb4-2-bay-m-2-nvme-ssd-enclosure-with-offline-clone-raid-40gbps-dual-nvme-storage-dock-65733eu","provider":"Ugreen India","version":"1.0","type":"link"}