Samsung MZ-77Q4T0 2.5" 4 TB Serial Ata III V-Nand MLC Samsung MZ-77Q4T0. SSD capacity: 4 TB, SSD form factor: 2.5", Read speed: 560 MB/s, Write speed: 530 MB/s, Data transfer rate: 6 Gbit/s, Component for: PC/notebook GBP 399.99 1