SanDisk 320 SATA SSD 2TB · 2.5-inch 7mm Internal Solid State Drive · SATA III 6Gb/s · Up to 545MB/s Read

The SanDisk 320 SATA SSD 2TB (SDSS31200TBB-000G0) is a 2.5-inch internal solid state drive with a SATA III 6Gb/s interface and sequential reads of up to 545MB/s, made for anyone replacing a slow hard drive in a laptop or desktop, or adding a large, quiet data drive to a PC that has a spare SATA bay.

It is the capacity people usually pick when they want one drive for the operating system, applications and a sizeable photo or project library without juggling external disks. The 6.86mm-thick body fits both standard 2.5-inch bays and slim 7mm laptop bays.

• 1 × SanDisk 320 SATA SSD 2TB, 2.5-inch
• No SATA cable, 3.5-inch adapter bracket, screws or cloning software are listed in the box by SanDisk

• Moving from a hard drive to this SSD typically makes boot, application launch and file search feel far quicker — the biggest gain on older machines is responsiveness, not raw copy speed.
• SATA III caps any SATA SSD at roughly 550–600MB/s, so this drive runs close to what the interface allows. A faster SATA SSD would not feel meaningfully different in everyday use.
• No moving parts: silent, cooler and more tolerant of the knocks a laptop takes in a bag than a spinning disk.
• For a desktop, a 2.5-inch drive in a 3.5-inch bay needs a simple adapter bracket, which you order separately.

• M.2-only laptops and mini PCs with no 2.5-inch bay — the drive physically cannot be installed.
• It will not reach NVMe speeds (2,000MB/s and above) even when installed in a PC that also has NVMe slots.
• Old SATA I or SATA II controllers will run it, but at the lower speed of that controller.
• Continuous 24/7 NAS duty is what SanDisk's separate NAS 600 line is designed for — for a NAS array, choose that line instead.