The hard drive typically found in a Time Capsule is the Hitachi Deskstar, which is sold by Hitachi as a consumer-grade product (the Hitachi Ultrastar is the enterprise version).[7] Apple labeled the drive as a server-grade drive in promotional material for Time Capsule, and also uses this type of drive in the Xserve servers. Apple states that the Hitachi Deskstar meets or exceeds the 1 million hour mean time between failures (MTBF) recommendation for server-grade hard drives.[8]

The 500GB, 1st generation Time Capsule shipped with a Seagate Barracuda ES-series drive.[9]

More recently, other hard drives such as the Western Digital Caviar Green series[10], and the Samsung EcoGreen series have been reported.