Seagate Barracuda 7200.10 (160 gB)
Seagate Barracuda 7200.11 (160 gB) firmware AD14 or later
Seagate Barracuda 7200.12 (500 gB)
Seagate Barracuda 1TB ST310005N1A1S-RK
Hitachi Deskstar 7200 rpm (80 gB)
Hitachi Deskstar 7200 rpm (1000 gB) HD31000 IDK/7K
Western Digital Caviar SE WD800AAJS(80 gB)
Western Digital Caviar Blue (250 & 500 gB)
Samsung HD161HJ 7200 rpm (160gB)
Samsung HD 103SJ 7200 RPM (1TB)
Drives of other capacities in these model families should also work.

Drives thought to be not compatible:
Seagate Barracuda 7200.8 ST3400832AS (400 gB)
Toshiba and Western Digital 2-1/2 inch 5400 rpm
Western Digital Caviar SE WD800JD-19LSA0 (dated 2005)
  this early SATA1 drive works in the HD24 but apparently
  not with FSTconnect or HD24tools in Windows.
Western Digital Caviar Green WD10EARS ( 1 TB)
  Like the PATA versions, this drive family is too slow
  and fails to mount reliably.
Maxtor Diamond Plus 9 160 gB (c.2003)