Western Digital (WD / HGST) 3.84TB NVMe U.2 PCIe Gen 3.0 x4 RI SFF 2.5" SSD Ultrastar DC SN640 WUS4BB038D7P3E3
HPE ProLiant Gen10 Plus / Gen11 / Gen12 Compatible (HPE SFF Basic Carrier Tray Included)
The Western Digital Ultrastar DC SN640 WUS4BB038D7P3E3 is a high-performance enterprise NVMe solid state drive designed for cloud computing, virtualization, software-defined storage, content delivery networks, database applications, and modern data center environments.
Built with 96-Layer BiCS4 3D TLC NAND Flash, this enterprise-class SSD delivers the speed, endurance, and reliability required for mission-critical workloads. Utilizing a PCIe Gen 3.1 x4 NVMe 1.3 interface, the Ultrastar DC SN640 provides up to 3,100 MB/s sequential read speeds, 1,800 MB/s sequential write speeds, and up to 434,000 random read IOPS for exceptional application responsiveness.
Designed for read-intensive workloads, the SN640 features advanced enterprise technologies including Power Loss Protection (PLP), End-to-End Data Path Protection, Hot-Swap Support, and Instant Secure Erase (ISE). With a 2 million hour MTBF, 0.8 DWPD endurance rating, and 5,744 TBW, this drive is engineered for long-term reliability in demanding enterprise environments.
HPE Basic Carrier (BC) Tray Compatibility
This drive includes an HPE Small Form Factor (SFF) Basic Carrier (BC) Tray, making it ready for installation in compatible HPE ProLiant servers utilizing HPE 2.5-inch drive bays.
Compatible HPE platforms include:
- HPE ProLiant DL325 Gen10 Plus
- HPE ProLiant DL385 Gen10 Plus
- HPE ProLiant DL360 Gen11
- HPE ProLiant DL380 Gen11
- HPE ProLiant DL560 Gen11
- Select HPE ProLiant Gen12 servers with U.2 NVMe support
- Other HPE servers using the HPE SFF Basic Carrier and NVMe-enabled backplanes
Important Compatibility Notes:
- Includes HPE Small Form Factor (SFF) Basic Carrier Tray
- Requires a U.2 NVMe-compatible backplane or controller
- Compatible with NVMe-enabled HPE drive bays
- Not compatible with SATA-only systems
- Not compatible with SAS-only backplanes
- Drive compatibility depends on the server's backplane and storage configuration
Key Features
- 3.84TB Enterprise NVMe SSD
- Ultrastar DC SN640 Series
- PCIe Gen 3.1 x4 Interface
- NVMe 1.3 Protocol
- 2.5" U.2 (SFF-8639) Form Factor
- Read Intensive (RI) Workload Optimized
- 96-Layer BiCS4 3D TLC NAND
- Up to 3,100 MB/s Sequential Read
- Up to 1,800 MB/s Sequential Write
- Up to 434,000 Random Read IOPS
- Power Loss Protection (PLP)
- End-to-End Data Protection
- Instant Secure Erase (ISE)
- Hot Plug / Hot Swap Support
- Enterprise-Class Reliability
- HPE SFF Basic Carrier Tray Included
Technical Specifications
- Manufacturer: Western Digital (WD) / HGST
- Series: Ultrastar DC SN640
- Model: WUS4BB038D7P3E3
- Capacity: 3.84TB
- Form Factor: 2.5" U.2 (SFF-8639)
- Drive Height: 7mm
- Interface: PCIe Gen 3.1 x4
- Protocol: NVMe 1.3
- NAND Type: BiCS4 96-Layer 3D TLC NAND
- Workload Class: Read Intensive (RI)
- Security Type: Instant Secure Erase (ISE)
- Hot Swappable: Yes
Performance
- Sequential Read Speed: Up to 3,100 MB/s
- Sequential Write Speed: Up to 1,800 MB/s
- Random Read (4K): Up to 434,000 IOPS
- Random Write (4K): Up to 65,000 IOPS
- Mixed Workload (70/30): Up to 157,000 IOPS
- Interface Transfer Rate: Up to 4 GB/s
Reliability & Endurance
- Endurance Rating: 0.8 DWPD
- Total Bytes Written (TBW): 5,744 TB
- MTBF: 2 Million Hours
- Power Loss Protection (PLP)
- End-to-End Data Path Protection
- Hot Plug / Hot Swap Support
- Instant Secure Erase (ISE)
Package Includes
- 1x Western Digital Ultrastar DC SN640 3.84TB NVMe SSD
- Model: WUS4BB038D7P3E3
- 1x HPE Small Form Factor (SFF) Basic Carrier Tray
Ideal Applications
- Cloud Computing
- Virtualization Infrastructure
- Enterprise Data Centers
- Content Delivery Networks (CDN)
- Software Defined Storage
- Read-Intensive Databases
- Hyper-Converged Infrastructure (HCI)
- Server Boot Volumes
- High-Density Storage Arrays
- Web Hosting Platforms
Please verify compatibility with your specific server and storage configuration before purchasing.
