Brand: Transcend Model: MTS 820 M.2 Read Speed (Max.): 560 MB/s Write Speed (Max.): 510 MB/s Weight (Max.):   9g(0.32 oz) Storage Capacity: 240 GB Operating Voltage: 3.3V±5% Dimensions (Max.): 80.0 mm x 22.0 mm x 3.58 mm (3.15" x 0.87" x 0.14") Warranty: Three-year Limited Warranty