Compatibility is the first filter when buying an SSD. A discounted NVMe drive does not solve an upgrade if the computer only accepts SATA. For a computer that supports NVMe, you still need the right physical size and enough clearance.
M.2 does not mean NVMe
M.2 is a physical format. An M.2 SSD can use SATA or PCIe NVMe, and the computer must support the matching technology. A connector that fits is not enough. Kingston’s M.2 FAQ explains the compatibility distinction.
| Drive type | Computer requirement |
|---|---|
| 2.5-inch SATA | A suitable bay and SATA connection; desktop installations also need data and power cables. |
| M.2 SATA | A SATA-compatible M.2 socket and the correct drive length. |
| M.2 PCIe NVMe | NVMe support, the right length and a suitable PCIe connection. |
A 2280 drive is 22 mm wide and 80 mm long. Check clearance for a heatsink or double-sided drive and read the motherboard manual for shared ports or lanes. The exact computer or motherboard model is more useful than a generic description such as “gaming laptop”.
Compare the capacity you will actually buy
Start with the space your files and applications need. Then compare the specifications of that capacity: declared speeds, warranty, write endurance and support. Do not apply the specifications of a 2 TB model to a 500 GB option in the same listing. Some warranties use both elapsed time and terabytes written; check the manufacturer’s terms for the exact product.
For an external drive, include the enclosure, cable and computer port in your decision. Confirm whether the enclosure accepts SATA, NVMe or both. Paying for a fast drive without checking the rest of the connection may not benefit your actual use.
A checklist to take to the listing
- Computer or motherboard model and supported storage technology.
- Drive format, length and physical clearance.
- Selected capacity and its actual price.
- Manufacturer warranty and technical documentation.
- Required screws, cables, enclosure or other accessories.
- A backup of important files before changing the drive.
Crucial’s installation guide shows the preparation and compatibility checks for its NVMe drives. Follow the instructions for your own hardware. This article provides a buying checklist; it does not report benchmark results or rank drives we have not tested.