WUS5EA138ESP7E1 Western Digital 3.84TB PCI E NVMe Solid State Drive
WUS5EA138ESP7E1 Overview
The Western Digital Ultrastar DC SN655 3.84 TB PCIe 4.0 NVMe U.3 Solid State Drive (model WUS5EA138ESP7E1) is a high‑capacity enterprise SSD built for data center, server, and storage‑system applications that require fast, reliable access to large datasets. It uses a PCI‑Express Gen4 ×4 NVMe 1.4 interface and a U.3 (15 mm) form factor that supports hot‑swappable installation in standard enterprise storage bays and backplanes. The drive is constructed with Western Digital BiCS5 3D TLC NAND flash, providing a strong balance of speed, endurance, and efficiency for mixed enterprise workloads. Its **sequential read speeds reach up to about 6,800 MB/s.
$1,860
WUS5EA138ESP7E1 Technical Specifications
Western Digital Ultrastar DC SN655 3.84TB PCI Express NVMe 4.0 U.3 Solid State Drive
Brand: Western Digital (Ultrastar)
Series: DC SN655
Model/Part: WUS5EA138ESP7E1
Capacity: 3.84 TB
Drive Type: Enterprise SSD
Form Factor: U.3 2.5‑inch, 15 mm
Interface: PCIe 4.0 x4 NVMe
NVMe Version: 1.4
Sequential Read: ~6800 MB/s
Sequential Write: ~2600 MB/s
Random Read: ~1,000,000 IOPS
Random Write: ~112,000 IOPS
NAND Type: 3D TLC flash
Endurance: ~1 DWPD (read‑intensive)
MTBF: ~2,500,000 hours
Power: Typical ~16–20 W, Idle <8 W
Data Protection: Power Loss Protection & Enterprise features
Usage: Servers / Data centers / Enterprise workloads
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