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SanDisk · PCIe 4.0 · 500 GB

WD_BLACK 500GB SN770

M.2 2280 · TLC NAND · Host-Memory-Buffer (HMB)

Performance: 64
Perf / price: 50
Capacity value: 25
Amazon: $190

View WD_BLACK 500GB SN770 Gallery in high resolution

Available on Amazon Updated Aug 29, 2026

Performance63.7

Performance / price50.3

Capacity value25.1

$190 on Amazon Add this SSD to a build Compare this SSD SSD table

Written analysis

WD_BLACK 500GB SN770 at a glance

The WD_BLACK 500GB SN770 is a 500 GB M.2 2280 SSD using PCIe 4.0 x4, NVMe 1.4. The controller is Polaris MP16+. Flash type is TLC 112-layer. Cache is listed as Host-Memory-Buffer (HMB).

Rated sequential throughput is 5000 MB/s read and 4000 MB/s write. Random throughput is 460K read IOPS and 800K write IOPS. The calculated specification score is 63.7.

Best fit: General storage workloads where compatibility and price matter more than peak transfer rates.

Endurance and thermals

Rated endurance is 300 TBW, or approximately 600 TBW per TB of capacity. The listed warranty is 5 years.

Current value

At $190, the drive costs $379.98 per TB. Performance / price is 50.3 and capacity value is 25.1. Compare these values with nearby drives below; interface generation and headline speed alone do not determine value.

Drive data

Full specifications

Interface, flash, controller, cache, throughput, endurance, power, warranty, and value in one technical sheet.

General

Manufacturer: SanDisk
SSD: WD_BLACK 500GB SN770
Part number: WDBDNH5000ABK-WRSN
Model: WDS500G3X0E
Capacity: 500 GB
Form factor: M.2 2280
Launch price: —
Amazon price: $190
Amazon availability: Available
Price updated: Aug 29, 2026

Performance

Sequential read: 5000 MB/s
Sequential write: 4000 MB/s
Random read: 460K IOPS
Random write: 800K IOPS

Value

Amazon price: $190
Price / TB: $379.98
Performance / price: 50.3
Capacity value: 25.1

Hardware & cache

Interface: PCIe 4.0 x4, NVMe 1.4
Interface generation: PCIe 4.0
Controller: Polaris MP16+
NAND: TLC 112-layer
Process: 16.0
Cache type: Host-Memory-Buffer (HMB)
DRAM: Host-Memory-Buffer (HMB)
DRAM capacity: 64 MB
DRAM speed: 2000 MT/s
SLC cache: Dynamic

Durability & power

Endurance: 300 TBW
Endurance / TB: 600 TBW
Warranty: 5 years
Idle power: —
Active power: —

Additional information

Also listed as: 500GB SN770
Color: Black

Amazon

Price history

Nearby performance

Similar SSDs

Drives close to WD_BLACK 500GB SN770 on calculated specification performance. Open the SSD table to sort, filter, and compare side by side.

Patriot Patriot P410 1TB 1000 GB · PCIe 4.0 · TLC

63.4

57.7

$165

Patriot Patriot P410 4TB 4000 GB · PCIe 4.0 · TLC

63.4

19.7

78.6

$484

PNY PNY XLR8 CS3040 1TB 1000 GB · PCIe 4.0 · TLC

63.5

—

Western Digital Western Digital 500GB WD Blue SN5000 500 GB · PCIe 4.0 · TLC

63.6

43.5

21.8

$219

PNY PNY CS2241 1TB M.2 NVMe Gen4 1000 GB · PCIe 4.0 · QLC

63.6

48.4

$197

SanDisk WD_BLACK 500GB SN770 This drive

63.7

50.3

25.1

$190

Silicon Power Silicon Power 4TB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD 4000 GB · PCIe 4.0 · TLC

63.7

18.7

75.0

$510

KingSpec KingSpec XF2280 1TB 1000 GB · PCIe 4.0 · TLC

63.9

66.6

$144

Silicon Power Silicon Power 1TB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD 1000 GB · PCIe 4.0 · TLC

64.0

51.9

$185

Compare these in the SSD table

Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

Introducing the WD_BLACK SN770M SSD, the first M.2 2230 NVMe SSD built from a brand gamers trust.

Supercharge compatible handheld devices such as the ASUS ROG Ally and Valve Steam Deck with speeds up to 5,150 MB/s[2] (1TB and 2TB models) for blazingly quick game installations and level loads.

Play more games, larger games wherever you are with up to 2TB of trusted SANDISK TLC 3D NAND storage.

Get ready for an immersive experience with exclusive gaming features including PCIe Gen 4.0[3], Sandisk's nCache 4.0 technology, and Microsoft’s DirectStorage Support.

Revitalize and expand the storage of your M.2 2230 SSD compatible laptop such as many Microsoft Surface and Dell models.

POWERED BY SANDISK: The WD_BLACK, WD Blue, and WD Green flash products are manufactured by Sandisk Technologies, Inc. or its affiliates and distributed under license from Western Digital Corporation.