WESTERN DIGITAL Black SN8100 4TB M.2 NVME Gen5 Internal Solid State ( SSD )

The Western Digital Black SN8100 4TB M.2 NVMe Gen5 Internal SSD (model WDS400T1X0M-00CMT0) is a flagship PCIe 5.0×4 NVMe storage solution engineered for gaming PCs, professional workstations, and AI-accelerated workflows. Built on Western Digital’s TLC 3D CBA NAND technology and paired with the nCache 4.0 caching architecture, the SN8100 achieves sequential read speeds of up to 14,900 MB/s and sequential write speeds of up to 14,000 MB/s — figures that represent a significant leap over PCIe Gen4 predecessors. Random performance is equally impressive, reaching 2.3 million read IOPS and 2.4 million write IOPS, making the drive well-suited for loading large game assets, processing high-resolution video timelines, and handling sizeable AI model datasets. Despite its peak throughput, the SN8100 operates at an average of 7.5 W or under, reflecting an efficiency-focused design that reduces thermal load on your system without sacrificing responsiveness. The drive ships in the M.2 2280 form factor (80.01 mm × 22.1 mm × 2.29 mm, 7.5 g), ensuring compatibility with virtually all modern desktop and laptop M.2 slots that support PCIe Gen5. An integrated anodized-aluminium heatsink with dual TIM pads provides passive cooling — no additional fans or power cables required — and includes customizable RGB lighting that can be controlled via the SanDisk Dashboard (Windows only). The dashboard also monitors drive health, manages firmware updates, and activates Game Mode automatically when a game launch is detected. Data migration from an existing drive is supported through the bundled Acronis True Image for SanDisk utility. Security-conscious users benefit from TCG Opal encryption support, while the drive’s broad certification portfolio — including CE, FCC, UL, TUV, RCM, KCC, BSMI, and VCCI — confirms compliance with major regional regulatory requirements. Key Specifications: • Model: WDS400T1X0M / WDS400T1X0M-00CMT0 • Capacity: 4 TB • Interface: PCIe Gen5 x4 NVMe (M.2 2280) • Sequential Read: up to 14,900 MB/s • Sequential Write: up to 14,000 MB/s • Random Read: 2.3 million IOPS • Random Write: 2.4 million IOPS • NAND Type: TLC 3D CBA • Average Operating Power: ≤ 7.5 W • Operating Temperature: 0 °C to 85 °C • Non-Operating Temperature: −40 °C to 85 °C • Dimensions: 80.01 mm × 22.1 mm × 2.29 mm • Weight: 7.5 g • Warranty: 5-Year Limited • Certifications: BSMI, CAN ICES-3(B)/NMB-3(B), CE, FCC, KCC, Morocco, RCM, TUV, UL, VCCI