HDD 2 TB, WD23PURZ SATA-3 , IntelliPower rpm, 256 MB 5400rpm PURPLE

HDD 4 TB, WD43PURZ SATA-6Gb, IntelliPower rpm, Buffer 256 MB PURPLE

Supports 2.5 SATA hard disk drives of any capacity , Fast external access to the hard drive via USB port: real speed up to 30 MB/s, limited only by the USB 2.0 interface and your drive capability , Aluminium case provides the best heat dissipation and drive protection