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Western Digital (WD) / HGST 7.68TB NVMe U.2 PCIe Gen 3.0 x4 SFF 2.5" SSD Ultrastar DC SN640 Series WUS4BB076D7P3E3

Western Digital (WD) / HGST 7.68TB NVMe U.2 PCIe Gen 3.0 x4 SFF 2.5" SSD Ultrastar DC SN640 Series WUS4BB076D7P3E3

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Western Digital (WD) / HGST 7.68TB NVMe U.2 PCIe Gen 3.0 x4 SFF 2.5" SSD Ultrastar DC SN640 Series WUS4BB076D7P3E3

The Western Digital Ultrastar DC SN640 WUS4BB076D7P3E3 is a high-performance enterprise NVMe solid state drive designed for read-intensive cloud, virtualization, enterprise storage, content delivery, and large-scale data center environments. Delivering enterprise reliability, low latency, and consistent performance, the SN640 Series combines Western Digital's proven storage technology with advanced NVMe architecture for demanding workloads.

Built with Western Digital BiCS4 96-Layer 3D TLC NAND Flash, this 7.68TB U.2 NVMe SSD utilizes a PCIe Gen 3.1 x4 NVMe 1.3 interface and delivers up to 3,100 MB/s sequential read, up to 1,800 MB/s sequential write, and up to 467,000 random read IOPS. The drive is optimized for read-intensive workloads with a 0.8 DWPD endurance rating while maintaining excellent reliability through enterprise-class protection features.

Product Specifications

  • Manufacturer: Western Digital (WD) / HGST
  • Series: Ultrastar DC SN640
  • Model Number: WUS4BB076D7P3E3
  • Product Type: Enterprise Read Intensive NVMe SSD
  • Capacity: 7.68TB (7,680GB)
  • Form Factor: 2.5-inch U.2 (SFF-8639)
  • Drive Height: 7mm
  • Interface: PCIe Gen 3.1 x4
  • Protocol: NVMe 1.3
  • NAND Flash: WD BiCS4 96-Layer 3D TLC NAND
  • Workload Class: Read Intensive (RI)
  • Security Type: ISE (Instant Secure Erase)
  • Hot Swappable: Yes

Performance

  • Sequential Read Speed: Up to 3,100 MB/s
  • Sequential Write Speed: Up to 1,800 MB/s
  • Maximum Random Read (4K): Up to 467,000 IOPS
  • Maximum Random Write (4K): Up to 65,000 IOPS
  • Mixed Random Workload (70/30): Up to 187,000 IOPS
  • Interface Transfer Rate: 4 GB/s
  • Ultra-Low Latency Enterprise Performance

Reliability & Endurance

  • Endurance Rating: 0.8 DWPD (Drive Writes Per Day)
  • Total Bytes Written (TBW): 11,479 TB
  • MTBF: 2 Million Hours
  • Enterprise Data Center Reliability
  • Power Loss Protection (PLP)
  • End-to-End Data Path Protection
  • Hot Plug / Hot Swap Support
  • Instant Secure Erase (ISE)

Security Information

  • This model is an ISE (Instant Secure Erase) drive.
  • Not a Self-Encrypting Drive (SED).
  • Does not support TCG Ruby authentication management.
  • Provides instant cryptographic erase for secure drive retirement.
  • SED versions are identified by model numbers ending in E4.

Compatible Dell PowerEdge Servers

  • PowerEdge R640
  • PowerEdge R650
  • PowerEdge R6515
  • PowerEdge R660
  • PowerEdge R740xd
  • PowerEdge R750
  • PowerEdge R7515
  • PowerEdge R7525
  • PowerEdge R760
  • PowerEdge R7625
  • PowerEdge MX740c
  • PowerEdge MX750c
  • PowerEdge C6420
  • PowerEdge C6520

Compatible HPE ProLiant Servers

  • ProLiant DL360 Gen10
  • ProLiant DL380 Gen10
  • ProLiant DL325 Gen10 Plus
  • ProLiant DL385 Gen10 Plus
  • ProLiant DL360 Gen11
  • ProLiant DL380 Gen11
  • ProLiant DL560 Gen11

Compatible Lenovo ThinkSystem Servers

  • ThinkSystem SR630 V2 / V3
  • ThinkSystem SR650 V2 / V3
  • ThinkSystem SR655
  • ThinkSystem SR665
  • ThinkSystem SD630 V2
  • ThinkSystem SD650 V2

Compatible Cisco UCS Servers

  • Cisco UCS C220 M5
  • Cisco UCS C220 M6
  • Cisco UCS C220 M7
  • Cisco UCS C240 M5
  • Cisco UCS C240 M6
  • Cisco UCS C240 M7

Compatible Supermicro Platforms

  • SYS-120U-TNR
  • SYS-220U-TNR
  • SYS-620U-TNR
  • SYS-220BT-HNTR
  • SYS-620BT-DNCSTR
  • SYS-110C-FNR
  • SYS-220C-TNRT

Compatibility Requirements

  • Requires a native U.2 NVMe backplane or U.2 NVMe host adapter.
  • Compatible with NVMe-enabled servers using SlimSAS or OCuLink connectivity.
  • Not compatible with SATA-only backplanes.
  • Not compatible with SAS-only backplanes.
  • Can be used in workstations and desktop systems with PCIe-to-U.2 or M.2-to-U.2 adapters.
  • May require manufacturer-specific drive trays or caddies.

OEM Part Numbers

  • Western Digital: WUS4BB076D7P3E3
  • Dell EMC OEM Equivalents: 0TS1930, 0TS2348, 0TS2088
  • Supermicro Equivalent: HDS-WUV1-0TS1930

Ideal Applications

  • Cloud Computing Platforms
  • Virtualized Infrastructure
  • Enterprise Data Centers
  • Software Defined Storage
  • Content Delivery Networks (CDN)
  • Read-Heavy Database Environments
  • Server Boot Volumes
  • Web Hosting Infrastructure
  • Hyper-Converged Infrastructure (HCI)
  • High-Density Storage Arrays