Crucial 128GB m4 SATAIII 2.5" (7mm). Solid-state drive capacity: 128 GB, Size: 63.5 mm (2.5 "), Solid-state drive interfaces: Serial ATA III. Read speed: 500 MB/s, Write speed: 175 MB/s, Random write (4KB): 35000 IOPS. Height: 7 mm. Colour of product: Grey. Device connectivity: Wired This is an auto-generated long summary based on the first three features of the first five feature groups.