WD_BLACK SN770M 500GB M.2 2230 NVMe SSD: specs and compatibility

The WD_BLACK SN770M is a small NVMe solid state drive in the M.2 2230 format, made for handheld gaming devices and compact laptops. This page covers the 500GB model (WDBDNH5000ABK-WRSN). The drive is a replacement or upgrade part: it swaps in where a handheld or thin laptop has an M.2 2230 slot, giving the device more room for games and files.

What M.2 2230 means

M.2 drives are named by their size. The numbers in "2230" are width and length in millimetres: 22 mm wide and 30 mm long. That is much shorter than the common 2280 drives (80 mm) used in desktops and most laptops. A 2230 drive is built for devices where space is tight, and a longer drive simply won't fit. The listing gives dimensions of about 1.2 x 0.9 inches (3 x 2.3 cm).

NVMe and the speed claims

NVMe is a protocol designed for flash storage that connects over PCIe, and it is typically much faster than SATA. Western Digital lists speeds of up to 5,150 MB/s for the 1TB and 2TB models. This page covers the 500GB model, and the listing's footnote attaches the 5,150 MB/s figure to the larger capacities, so don't assume the 500GB version reaches it. Smaller capacities of a drive range often post somewhat lower figures than larger ones. Check the manufacturer's data for this exact model.

In everyday terms, a fast SSD mostly shortens game installs and level loads. A handheld's own processor and its storage connection also affect results.

Memory type and capacity range

The drive uses Western Digital TLC 3D NAND. TLC stores three bits per cell, a common design that balances capacity and speed. The line runs up to 2TB, and the 500GB model suits a smaller library or a modest laptop upgrade.

Handhelds and laptops

Western Digital names the ASUS ROG Ally and Valve Steam Deck as examples of compatible handhelds, and says it can expand the storage of M.2 2230 compatible laptops such as many Microsoft Surface and Dell models. "Many" is the key word. Compatibility depends on the exact device, so look up your model's specifications.

Software and warranty

Western Digital's Dashboard software helps keep the drive tuned and is Windows only. A handheld that runs another operating system can't use it directly. The drive carries Western Digital's five-year limited warranty.

Who it suits

It suits owners of handhelds or small laptops with a 2230 slot who are running short of storage and are comfortable opening the device. Some handhelds need a back panel removed and a shield lifted, so the manufacturer's service guidance is the best place to start.

What to check before you buy

• Slot size: confirm the slot takes M.2 2230, not 2242 or 2280.
• Interface: check that the slot supports NVMe over PCIe.
• Your device: confirm the specific model is listed as compatible.
• Speed expectations: the maximum speed applies to the larger capacities and depends on the device's connection.
• Opening the device: check whether opening it affects any warranty you hold.
• Data move: plan how to copy or reinstall your games and system on the new drive.

The short version

• Compact M.2 2230 NVMe SSD, 500GB version, built for handhelds and small laptops.
• TLC 3D NAND; speeds up to 5,150 MB/s are quoted for the 1TB and 2TB models.
• Named as suiting the ASUS ROG Ally, Steam Deck and many Surface and Dell laptops.
• Five-year limited warranty; Dashboard software is Windows only.

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