SanDisk X400 128GB SATA M.2 2280 internal SSD

SanDisk X400 128GB SATA M.2 2280

The SanDisk X400 128GB is a SATA III internal solid-state drive built in the M.2 2280 form factor. It suits laptops or small-form-factor desktops that have an M.2 slot wired for SATA rather than PCIe.

Capacity and headroom

At 128GB the drive holds an operating system, core applications and a modest working set of documents. It will fill quickly if you store large media libraries, modern game installations or virtual-machine images, so plan secondary storage for those workloads.

SATA III interface limits

The SATA III link caps sequential throughput at the bus maximum of 6Gb/s, so sustained reads and writes cannot exceed that ceiling. Random I/O performance is also bounded by the AHCI protocol overhead inherent to the SATA stack.