Western Digital Black SN770

The WD Black SN770 is a PCIe Gen4 NVMe SSD that offers impressive sequential read speeds up to 5,150 MB/s. This makes it significantly faster than older Gen3 drives, yet it remains much more affordable than the flagship WD Black SN850 series. It is a fantastic entry point into high-speed storage for PC gaming.

Because the SN770 runs efficiently without a DRAM cache, it generates slightly less heat than some high-end Gen4 drives, but a heatsink is still highly recommended for PS5 use. Sony requires an M.2 SSD with a heatsink to safely expand the PlayStation 5's storage capacity. You will need to buy an aftermarket heatsink or ensure you purchase a version that includes one.

Yes, the WD Black SN770 is a DRAM-less drive that utilizes the newer PCIe Gen4 Host Memory Interface (HMB) technology to borrow system memory. While DRAM-less, its real-world gaming load times are virtually indistinguishable from more expensive drives. The drive still delivers excellent performance for general use and direct storage rendering.

Western Digital backs the SN770 SSD with a standard 5-year limited manufacturer warranty. This guarantees the drive for five years or until the Terabytes Written (TBW) endurance rating is reached, whichever comes first. This makes it a highly reliable choice for primary boot drives or high-end game libraries.