Western Digital Black WD3003FZEX 3TB 7200RPM SATA3/SATA 6.0 GB/s 64MB Hard Drive (3.5 inch)

Features: Plug & play, security key lock, fail alarm warning, tool-free installation, fits in 5.25" drive bay, LED indicators for power/HDD activity, LCD for temperature and fan speed monitoring, front ventilation, and rear fan for cooling.
HDD Capacity: Supports up to 4TB.
Interface: SATA.
Compatibility: Windows XP/Vista/7/8, macOS v10.4+.
Form Factor: 3.5" SATA HDD (SATA I/II/III).
Material: Metal and plastic.
Dimensions: 148 x 188 x 42 mm.