{"product_id":"western-digital-wd-hgst-3-84tb-nvme-u-2-pcie-gen-3-0-x4-sff-2-5-ssd-ultrastar-dc-sn640-series-wus4bb038d7p3e3","title":"Western Digital (WD) \/ HGST 3.84TB NVMe U.2 PCIe Gen 3.0 x4 SFF 2.5\" SSD Ultrastar DC SN640 Series WUS4BB038D7P3E3","description":"\u003ch2\u003eWestern Digital (WD) \/ HGST 3.84TB NVMe U.2 PCIe Gen 3.0 x4 RI SFF 2.5\" SSD Ultrastar DC SN640 Series WUS4BB038D7P3E3\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eWestern Digital Ultrastar DC SN640 WUS4BB038D7P3E3\u003c\/strong\u003e is a high-performance enterprise-class NVMe solid state drive designed for read-intensive cloud computing, virtualization, web hosting, content delivery, scale-out storage, and modern data center environments. Combining enterprise reliability with low-latency NVMe performance, the Ultrastar DC SN640 Series delivers consistent operation for mission-critical workloads.\u003c\/p\u003e\n\n\u003cp\u003eBuilt with \u003cstrong\u003eWestern Digital BiCS4 96-Layer 3D TLC NAND Flash\u003c\/strong\u003e, this \u003cstrong\u003e3.84TB U.2 NVMe SSD\u003c\/strong\u003e utilizes a \u003cstrong\u003ePCIe Gen 3.1 x4 NVMe 1.3 interface\u003c\/strong\u003e and delivers up to \u003cstrong\u003e3,100 MB\/s sequential read speeds\u003c\/strong\u003e, up to \u003cstrong\u003e1,800 MB\/s sequential write speeds\u003c\/strong\u003e, and up to \u003cstrong\u003e434,000 random read IOPS\u003c\/strong\u003e. Optimized for read-intensive (RI) workloads, the drive offers a balance of performance, endurance, and enterprise-grade data protection features.\u003c\/p\u003e\n\n\u003cp\u003eThe WUS4BB038D7P3E3 includes advanced enterprise technologies such as \u003cstrong\u003ePower Loss Protection (PLP)\u003c\/strong\u003e, \u003cstrong\u003eEnd-to-End Data Path Protection\u003c\/strong\u003e, \u003cstrong\u003eHot-Swap Support\u003c\/strong\u003e, and \u003cstrong\u003eInstant Secure Erase (ISE)\u003c\/strong\u003e for fast and secure drive retirement. With an endurance rating of \u003cstrong\u003e0.8 DWPD\u003c\/strong\u003e, \u003cstrong\u003e5,744.64 TBW\u003c\/strong\u003e, and a \u003cstrong\u003e2 million hour MTBF\u003c\/strong\u003e, this SSD is engineered for dependable long-term operation in enterprise environments.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Western Digital (WD) \/ HGST\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Ultrastar DC SN640\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e WUS4BB038D7P3E3\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Enterprise Read Intensive NVMe SSD\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 3.84TB (3,840GB)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e 2.5-inch U.2 (SFF-8639)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eDrive Height:\u003c\/strong\u003e 7mm\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e PCIe Gen 3.1 x4\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eProtocol:\u003c\/strong\u003e NVMe 1.3\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNAND Flash:\u003c\/strong\u003e WD BiCS4 96-Layer 3D TLC NAND\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eWorkload Class:\u003c\/strong\u003e Read Intensive (RI)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eSecurity Type:\u003c\/strong\u003e ISE (Instant Secure Erase)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eHot Swappable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerformance\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eSequential Read Speed:\u003c\/strong\u003e Up to 3,100 MB\/s\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eSequential Write Speed:\u003c\/strong\u003e Up to 1,800 MB\/s\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMaximum Random Read (4K):\u003c\/strong\u003e Up to 434,000 IOPS\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMaximum Random Write (4K):\u003c\/strong\u003e Up to 65,000 IOPS\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMixed Random Workload (70\/30):\u003c\/strong\u003e Up to 157,000 IOPS\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eInterface Transfer Rate:\u003c\/strong\u003e 4 GB\/s\u003c\/li\u003e\n\t\u003cli\u003e\u003cstrong\u003eUltra-Low Latency Enterprise Performance\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReliability \u0026amp; Endurance\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eEndurance Rating:\u003c\/strong\u003e 0.8 DWPD (Drive Writes Per Day)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eTotal Bytes Written (TBW):\u003c\/strong\u003e 5,744.64 TB\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMTBF:\u003c\/strong\u003e 2 Million Hours\u003c\/li\u003e\n\t\u003cli\u003e\u003cstrong\u003eEnterprise Data Center Reliability\u003c\/strong\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cstrong\u003ePower Loss Protection (PLP)\u003c\/strong\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cstrong\u003eEnd-to-End Data Path Protection\u003c\/strong\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cstrong\u003eHot Plug \/ Hot Swap Support\u003c\/strong\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cstrong\u003eInstant Secure Erase (ISE)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSecurity Information\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eThis model is an \u003cstrong\u003eISE (Instant Secure Erase)\u003c\/strong\u003e drive.\u003c\/li\u003e\n\t\u003cli\u003eNot a Self-Encrypting Drive (SED).\u003c\/li\u003e\n\t\u003cli\u003eDoes not support TCG Ruby authentication management.\u003c\/li\u003e\n\t\u003cli\u003eProvides instant cryptographic erase for secure drive retirement.\u003c\/li\u003e\n\t\u003cli\u003eSED versions are identified by model numbers ending in \u003cstrong\u003eE4\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Dell PowerEdge Servers\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003ePowerEdge R640\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge R650\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge R6515\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge R660\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge R740xd\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge R750\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge R7515\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge R7525\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge R760\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge R7625\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge MX740c\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge MX750c\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge C6420\u003c\/li\u003e\n\t\u003cli\u003ePowerEdge C6520\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible HPE ProLiant Servers\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eProLiant DL360 Gen10\u003c\/li\u003e\n\t\u003cli\u003eProLiant DL380 Gen10\u003c\/li\u003e\n\t\u003cli\u003eProLiant DL325 Gen10 Plus\u003c\/li\u003e\n\t\u003cli\u003eProLiant DL385 Gen10 Plus\u003c\/li\u003e\n\t\u003cli\u003eProLiant DL360 Gen11\u003c\/li\u003e\n\t\u003cli\u003eProLiant DL380 Gen11\u003c\/li\u003e\n\t\u003cli\u003eProLiant DL560 Gen11\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Lenovo ThinkSystem Servers\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eThinkSystem SR630 V2 \/ V3\u003c\/li\u003e\n\t\u003cli\u003eThinkSystem SR650 V2 \/ V3\u003c\/li\u003e\n\t\u003cli\u003eThinkSystem SR655\u003c\/li\u003e\n\t\u003cli\u003eThinkSystem SR665\u003c\/li\u003e\n\t\u003cli\u003eThinkSystem SD630 V2\u003c\/li\u003e\n\t\u003cli\u003eThinkSystem SD650 V2\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Cisco UCS Servers\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eCisco UCS C220 M5\u003c\/li\u003e\n\t\u003cli\u003eCisco UCS C220 M6\u003c\/li\u003e\n\t\u003cli\u003eCisco UCS C220 M7\u003c\/li\u003e\n\t\u003cli\u003eCisco UCS C240 M5\u003c\/li\u003e\n\t\u003cli\u003eCisco UCS C240 M6\u003c\/li\u003e\n\t\u003cli\u003eCisco UCS C240 M7\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Supermicro Platforms\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eSYS-120U-TNR\u003c\/li\u003e\n\t\u003cli\u003eSYS-220U-TNR\u003c\/li\u003e\n\t\u003cli\u003eSYS-620U-TNR\u003c\/li\u003e\n\t\u003cli\u003eSYS-220BT-HNTR\u003c\/li\u003e\n\t\u003cli\u003eSYS-620BT-DNCSTR\u003c\/li\u003e\n\t\u003cli\u003eSYS-110C-FNR\u003c\/li\u003e\n\t\u003cli\u003eSYS-220C-TNRT\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility Requirements\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eRequires a native U.2 NVMe backplane or U.2 NVMe host adapter.\u003c\/li\u003e\n\t\u003cli\u003eCompatible with NVMe-enabled servers using SlimSAS or OCuLink connectivity.\u003c\/li\u003e\n\t\u003cli\u003eNot compatible with SATA-only backplanes.\u003c\/li\u003e\n\t\u003cli\u003eNot compatible with SAS-only backplanes.\u003c\/li\u003e\n\t\u003cli\u003eCan be used in workstations and desktop systems with PCIe-to-U.2 or M.2-to-U.2 adapters.\u003c\/li\u003e\n\t\u003cli\u003eMay require manufacturer-specific drive trays or caddies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOEM Part Numbers\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eWestern Digital: WUS4BB038D7P3E3\u003c\/li\u003e\n\t\u003cli\u003eDell EMC OEM Equivalents: 0TS1929, 0TS2348, 0TS2088\u003c\/li\u003e\n\t\u003cli\u003eSupermicro Equivalent: HDS-WUV1-0TS1929\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eCloud Computing Platforms\u003c\/li\u003e\n\t\u003cli\u003eVirtualized Infrastructure\u003c\/li\u003e\n\t\u003cli\u003eEnterprise Data Centers\u003c\/li\u003e\n\t\u003cli\u003eSoftware Defined Storage\u003c\/li\u003e\n\t\u003cli\u003eContent Delivery Networks (CDN)\u003c\/li\u003e\n\t\u003cli\u003eRead-Heavy Database Environments\u003c\/li\u003e\n\t\u003cli\u003eServer Boot Volumes\u003c\/li\u003e\n\t\u003cli\u003eWeb Hosting Infrastructure\u003c\/li\u003e\n\t\u003cli\u003eHyper-Converged Infrastructure (HCI)\u003c\/li\u003e\n\t\u003cli\u003eHigh-Density Storage Arrays\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Western Digital (WD)","offers":[{"title":"Default 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