2.75in.

Toshiba 40GB MK4050GAC HDD2G20 4200RPM IDE PATA 2.5″ Laptop HDD Hard Disk Drive

Seagate 160GB ST3160215ACE 7200 RPM PATA IDE 3.5″ Desktop HDD Hard Disk Drive

Samsung 850 Pro 512GB SSD (MZ-7KE512) 3D V-NAND 6Gb/s 2.5″ 7mm

Samsung 850 Pro 2TB SSD (MZ-7KE2T0) 3D V-NAND SATA III 6Gb/s 2.5″ 7mm

Samsung 850 PRO 512GB 2.5″ SATA SSD Solid State Drive MZ-7KE512 99% HEALTH