The WD BLACK SN770M 2TB is a high-performance NVMe SSD designed for portable devices and compact gaming systems that rely on the M.2 2230 form factor. It delivers impressive speeds and stable performance through the PCIe Gen4 NVMe interface, combined with advanced technologies such as nCache 4.0 and Host Memory Buffer (HMB). This makes it an excellent upgrade choice for ultra-thin laptops and handheld gaming devices like the Steam Deck and ROG Ally. With fast read and write speeds, generous capacity, it ensures smooth gameplay and reliable storage.
Key Features
2TB compact storage in M.2 2230 form factor
High-performance PCIe Gen4 ×4 NVMe interface
Sequential read speeds up to 5150 MB/s
Sequential write speeds up to 4850 MB/s
Endurance rating of 1200 TBW for the 2TB model
HMB technology to compensate for DRAM-less design
Ideal for handheld gaming consoles and small form factor PCs
Backed by a 5-year limited warranty
Full Technical Specifications
Design
Model: WD BLACK SN770M
Capacity: 2TB
Form Factor: M.2 2230
NAND Type: 3D TLC NAND
Performance
Sequential Read Speed: Up to 5150 MB/s
Sequential Write Speed: Up to 4850 MB/s
Random IOPS: Up to 650,000 (read) / 800,000 (write)
Capacity & Endurance
Total Bytes Written (TBW): 1200 TB
Mean Time to Failure (MTTF): Up to 1.75 million hours
Power
Low power consumption with HMB technology
Optimized for portable and compact systems
Dimensions
Length: 30 mm
Width: 22 mm
Thickness: 2.38 mm
