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 Gen9 / Gen10 Compatible (HPE SFF Smart 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, database applications, and modern data center environments.
Featuring 3.84TB of storage capacity, enterprise-grade reliability, and ultra-low latency NVMe performance, the Ultrastar DC SN640 is optimized for read-intensive workloads that demand consistent performance and maximum uptime.
Built with 96-Layer BiCS4 3D TLC NAND Flash, this U.2 SSD utilizes a PCIe Gen 3.1 x4 NVMe 1.3 interface to deliver up to 3,100 MB/s sequential read speeds, 1,800 MB/s sequential write speeds, and up to 434,000 random read IOPS.
Designed for mission-critical enterprise environments, the SN640 includes advanced features such as Power Loss Protection (PLP), End-to-End Data Path Protection, Hot-Swap Support, and Instant Secure Erase (ISE). With 0.8 DWPD endurance, 5,744 TBW, and a 2 million hour MTBF, this drive provides exceptional long-term reliability.
HPE Smart Carrier (SC) Tray Compatibility
This drive includes an HPE Small Form Factor (SFF) Smart Carrier (SC) Tray, making it ready for installation in compatible HPE ProLiant servers utilizing HPE Smart Carrier drive bays.
Compatible HPE ProLiant Servers
- HPE ProLiant DL360 Gen9
- HPE ProLiant DL380 Gen9
- HPE ProLiant DL560 Gen9
- HPE ProLiant DL580 Gen9
- HPE ProLiant DL360 Gen10
- HPE ProLiant DL380 Gen10
- HPE ProLiant DL560 Gen10
- HPE ProLiant DL580 Gen10
- HPE ProLiant DL325 Gen10
- HPE ProLiant DL385 Gen10
- HPE Apollo Gen9 & Gen10 Series (NVMe-enabled models)
Important Compatibility Notes
- Includes HPE SFF Smart Carrier (SC) Tray
- Requires a U.2 NVMe-compatible backplane or controller
- Compatible with HPE Smart Carrier drive bays
- Requires NVMe-enabled server configuration
- Not compatible with SATA-only backplanes
- Not compatible with SAS-only backplanes
- Server compatibility depends on backplane, controller, and drive bay configuration
Key Features
- 3.84TB Enterprise NVMe SSD
- Ultrastar DC SN640 Series
- PCIe Gen 3.1 x4 Interface
- NVMe 1.3 Protocol
- 2.5-Inch U.2 (SFF-8639) Form Factor
- Read Intensive (RI) Workload Optimized
- WD BiCS4 96-Layer 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 Smart 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: 96-Layer BiCS4 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 Bandwidth: 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 SFF Smart Carrier (SC) Tray
Ideal Applications
- Cloud Computing
- Virtualization Infrastructure
- Enterprise Data Centers
- Software-Defined Storage
- Content Delivery Networks (CDN)
- Read-Intensive Databases
- Server Boot Volumes
- Hyper-Converged Infrastructure (HCI)
- Web Hosting Platforms
- High-Density Storage Arrays
Please verify compatibility with your specific HPE server, backplane, and NVMe storage configuration before purchasing.
