Intenso Memory Case 4 TB; external 2.5"" HDD 4 TB; read: 85 MB/s, write: 75 MB/s; 5.400 U/min.; 8 MB Cache; Micro-USB-B 3.2 (5 Gbit/s) Connector; Dimensions: 78 x 20 x 127 mm (WxHxD)