WESTERN DIGITAL Black SN770 250GB M.2 NVME Gen4 Solid State Drive ( SSD )

The Western Digital Black SN770 250GB is a compact M.2 2280 NVMe solid-state drive built around the PCIe Gen4 x4 interface, delivering sequential read speeds of up to 4,000 MB/s and sequential write speeds of up to 2,000 MB/s. Random performance is rated at 240,000 IOPS read and 470,000 IOPS write, making it responsive under multi-tasking and gaming workloads alike. The SN770 uses the PCIe Gen4 interface (16 GT/s), and remains backward-compatible with PCIe Gen3 and Gen2 systems, so it fits a wide range of desktops and laptops equipped with an M.2 M-key slot that supports the M.2 2280 form factor. Supported operating systems include Windows 11, Windows 10, and Windows 8.1. At 250GB capacity, this drive is well-suited as a fast boot and primary application drive. A 200 TBW endurance rating and a 5-year limited warranty (whichever comes first) provide meaningful long-term reliability assurance. The drive’s operating temperature range is 0°C to 85°C, while non-operating storage is rated down to -40°C. Measuring 80 mm × 22 mm × 2.38 mm and weighing approximately 5.5 g, the SN770 is thin enough to install in slim laptops without requiring a heatsink. The drive carries the manufacturer part number WDS250G3X0E. Western Digital also offers the WD_BLACK Dashboard utility, which lets users monitor drive health and configure gaming mode for consistent sustained performance. Verified Specifications: • Capacity: 250 GB • Form Factor: M.2 2280 • Interface: PCIe Gen4 x4, NVMe (16 GT/s) • Sequential Read: 4,000 MB/s • Sequential Write: 2,000 MB/s • Random Read: 240,000 IOPS • Random Write: 470,000 IOPS • Endurance (TBW): 200 • Warranty: 5-year limited (or 200 TBW) • Operating Temperature: 0°C to 85°C • Dimensions: 80 × 22 × 2.38 mm • Weight: 5.5 g (±0.5 g) • MPN: WDS250G3X0E