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Small black rectangular circuit board M.2 2230 SSD

SanDisk

SanDisk WDBDNH0020BBK-WRSN 2TB M.2 2230 internal SSD

SKU CH-V0NT-H9X23 MPN WDBDNH0020BBK-WRSN

A 2TB M.2 2230 NVMe drive with sequential reads up to 5150 MBps and 1200 TBW endurance for handheld gaming devices

  • Used ForConsumer
  • Form FactorM.2 2230
  • Capacity2TB
  • Memory Components3D NAND TLC
  • InterfacePCIe® Gen 4.0
  • ProtocolNVMe

Options 2TB

  • 2TB capacity stores more games and large files
  • M.2 2230 form factor fits handhelds and compact laptops
  • Sequential read up to 5150 MBps speeds game installs and level loads
  • 1200 TBW endurance rating supports heavy write workloads
  • 75 million hours MTTF indicates long-term reliability

2TB M.2 2230 NVMe SSD

The SanDisk SN770M delivers 2TB of PCIe Gen 4.0 storage in the compact M.2 2230 form factor. It uses 3D NAND TLC flash and a DRAM-less design with HMB caching. Sequential speeds reach 5150 MBps read and 4850 MBps write. It targets handheld gaming devices and compatible laptops.

Upgrade from factory fitted drives

Replacing a smaller original drive adds space for larger game libraries and faster level loads. The 1200TBW endurance rating supports heavy write workloads over the drive's lifespan. A move to this capacity makes sense when the existing SSD limits the number of installed titles.

2TB capacity headroom

The 2TB volume comfortably holds dozens of modern games and media files. Random performance of 650000 read IOPS and 800000 write IOPS keeps responsiveness high during gameplay. Thermal limits sit at 85°C, so sustained heavy transfers in thin chassis may throttle.

Highlights

  • 2TB capacity stores more games and large files
  • M.2 2230 form factor fits handhelds and compact laptops
  • Sequential read up to 5150 MBps speeds game installs and level loads
  • 1200 TBW endurance rating supports heavy write workloads
  • 75 million hours MTTF indicates long-term reliability

Specifications

BrandWestern Digital
SeriesSN770M
ModelWDBDNH0020BBK-WRSN
Used ForConsumer
Form FactorM.2 2230
Capacity2TB
Memory Components3D NAND TLC
InterfacePCIe® Gen 4.0
ProtocolNVMe
CacheNo DRAM (HMB)
Max Sequential ReadUp to 5150 MBps
Max Sequential WriteUp to 4850 MBps
4KB Random ReadUp to 650,000 IOPS
4KB Random WriteUp to 800,000 IOPS
Terabytes Written (TBW)1200TB
MTTF1.75 Million Hours
Operating Temperature0°C ~ +85°C
Storage Temperature-40°C ~ +85°C
Height2.38mm
Width22 ± 0.15mm
Depth30 ± 0.15mm
Weight2.8g ± 0.5g
Shipping weight0.05 kg
Package size127 × 102 × 23 mm

Other versions of this model

1 more in the same range

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Questions about this item

Will the M.2 2230 form factor and 2.38 mm height fit my Steam Deck slot?

Yes, the drive is built to the M.2 2230 standard measuring 22 mm wide by 30 mm long with a 2.38 mm profile, matching the slot used in Steam Deck and many Surface laptops.

What is the correct way to seat the PCIe Gen 4.0 NVMe drive and the screw size people often lose?

Insert the drive at an angle until the gold edge contacts are fully hidden, then press it flat and secure it with the single M2 × 3 mm standoff screw supplied by the device manufacturer.

How much data can I write before the 3D NAND TLC cells reach their rated endurance?

The drive is rated for 1200 TBW, so you can write roughly 650 GB every day for the five-year warranty period before reaching that limit.

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