SanDisk
SanDisk SN770M 2TB M.2 2230 NVMe internal SSD
M.2 2230 NVMe SSD with 2TB capacity and PCIe 4.0 speeds up to 5150 MB/s read for handheld gaming devices
- Used ForConsumer
- Form FactorM.2 2230
- Capacity2TB
- Memory Components3D NAND TLC
- InterfacePCIe® Gen 4.0
- ProtocolNVMe
- Sequential reads up to 5150 MBps accelerate game loading
- Sequential writes up to 4850 MBps speed up large file transfers
- Random read 650000 IOPS and random write 800000 IOPS boost multitasking responsiveness
- 1200TB endurance rating supports heavy daily write workloads
- M.2 2230 form factor fits Steam Deck, ROG Ally and compatible laptops
Compact storage for handhelds
The SN770M is a 2TB M.2 2230 NVMe SSD designed for devices that only accept the shorter 2230 form factor. It fits Steam Deck, ROG Ally and many Surface or Dell laptops without adapters or modifications.
Thermals and power in use
Operating temperature spans 0°C to 85°C with a 2.38mm single-sided profile that leaves room for thin thermal pads. The PCIe 4.0 controller and TLC 3D NAND keep sustained write power modest, so handheld batteries are not drained aggressively during large installs.
Build and daily implications
The drive weighs 2.8g and measures 22mm by 30mm, matching the exact slot dimensions of supported machines. Western Digital Dashboard software on Windows lets owners monitor the 1200TBW endurance rating and apply firmware updates without opening the chassis.
Pontos fortes
- Sequential reads up to 5150 MBps accelerate game loading
- Sequential writes up to 4850 MBps speed up large file transfers
- Random read 650000 IOPS and random write 800000 IOPS boost multitasking responsiveness
- 1200TB endurance rating supports heavy daily write workloads
- M.2 2230 form factor fits Steam Deck, ROG Ally and compatible laptops
Especificações
| Brand | Western Digital |
|---|---|
| Series | SN770M |
| Model | WDBDNH0020BBK-WRSN |
| Used For | Consumer |
| Form Factor | M.2 2230 |
| Capacity | 2TB |
| Memory Components | 3D NAND TLC |
| Interface | PCIe® Gen 4.0 |
| Protocol | NVMe |
| Max Sequential Read | Up to 5150 MBps |
| Max Sequential Write | Up to 4850 MBps |
| 4KB Random Read | Up to 650,000 IOPS |
| 4KB Random Write | Up to 800,000 IOPS |
| Terabytes Written (TBW) | 1200TB |
| MTTF | 1.75 Million Hours |
| Operating Temperature | 0°C ~ +85°C |
| Storage Temperature | -40°C ~ +85°C |
| Height | 2.38mm |
| Width | 22 ± 0.15mm |
| Depth | 30 ± 0.15mm |
| Weight | 2.8g ± 0.5g |
Perguntas sobre este artigo
How do I install the M.2 2230 NVMe drive in a Steam Deck, and what step do people often miss?
Remove the back cover, disconnect the battery, insert the drive at a 30-degree angle into the M.2 2230 slot, secure it with the single screw, reconnect the battery, then reattach the cover; the step most people miss is disconnecting the battery before starting.
What maintenance will the 2TB 3D NAND TLC drive need over its 1200TB TBW life?
No hardware maintenance is required; keep firmware current via the Western Digital Dashboard on Windows and monitor SMART health attributes to track wear against the 1200TB TBW rating.
At what temperature does the PCIe Gen 4.0 NVMe SSD throttle during sustained heavy workloads?
The controller begins thermal throttling when the drive reaches its maximum operating temperature of 85°C to protect the 3D NAND TLC components.
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