Dimensions of Appearance The dimensions of CM42 are 81.41 x 33.6 x 7.5 mm (3.21" x 1.32" x 0.30"). The dimensions of CM80 are 120.16 x 33.6 x 7.5 mm (4.73" x 1.32" x 0.30"). CM42 weight: 29 g (1.02 oz) CM80: 1.45 oz (41 g) USB 3.1 Gen 1 Bus Interface SATA III 6Gb/s Interface Connection Interface Environment of Operation Temperature range for operation: 0°C (32°F) to 70°C (158°F) Temperature of Storage: -40°C (-40°F) Approximately 85°C (185°F) 5V is the operating voltage. Take note PCI-Express M.2 SSDs are incompatible with the M.2 SSD Enclosure Kit. CE, FCC, BSMI, KC, and RCM warranty certificates Limited Warranty for two years Policy for Warranty To learn more about the Transcend Warranty Policy, please click here. Contents of the package Type-C to Type-A USB cable (45 cm), enclosure, M.2 adapter, metal plate, aluminum sticker, screwdriver, and mounting