Western Digital WD_BLACK 2TB SN770 Storage

Western Digital WD_BLACK 2TB SN770

Brand
Western Digital
Model
WD_BLACK 2TB SN770
$431–$477estimated range · from catalog price Sep 3, 2026

WD_BLACK SN770 2TB (WDS200T3X0E): mainstream PCIe 4.0 NVMe SSD, DRAM‑less HMB design, up to 5,150 MB/s reads, 1,200 TBW—good for boot drives and game libraries.

Storage performance rankTop 5% of storage drives
TierMainstream?GixCore tierWhat a part was built to do — not what it costs.EntryBudgetMainstreamHigh endEnthusiastFlagship A part can be cheap because it is an ageing flagship, or because it is a current entry-level model. The tier tells you which.
ReleasedFeb 2022
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Capacity2 TB
TypeSSD
InterfacePCIe
Read speed4850 MB/s
Form factorM.2
GixCore Editorial

Product overview

Released on February 2, 2022, the WD_BLACK SN770 joins Western Digital’s WD_BLACK gaming SSD line as a PCIe 4.0 NVMe M.2 2280 drive. Positioned in the mainstream tier, it exists to deliver Gen4 TLC speeds without the cost of onboard DRAM, using Host Memory Buffer instead; the 2TB model is rated up to 5,150 MB/s reads. For practical use, the 2TB capacity, PCIe 4.0 x4 interface and M.2 2280 form factor suit a primary OS boot drive and a large game library; endurance is 1,200 TBW with a 5‑year warranty, adequate for everyday gaming and productivity workloads. Notable: a DRAM‑less HMB design that keeps power and cost down while maintaining solid Gen4 performance.Sourcethinkcomputers.orgSourcetomshardware.comSourcewesterndigital.comSourcePCWorld

Best for
  • boot drive
  • game library
  • budget upgrade

Specifications

At a glance iEach dot represents a catalog model. Farther right means a higher measured value, not necessarily a better fit.Measured against the storage drives catalog
Current modelCatalog models
Capacity2 TB
Higher than 36% of storage drives
Read speed4850 MB/s
Higher than 84% of storage drives
Capacity
2 TB
Type
SSD
Form factor
M.2
Hardware Interface
PCI-E
Data Transfer Rate
16000 Mb/s
Interface
PCIe
Read speed
4850 MB/s
Tdp
3.3 W
Pairing fit

Compatible Motherboards

Compatible options ranked for this part's performance class.