RC-C12 (1U)
Dimensions: 483(W) x 43.6(H) x 323(D)mm
(19" x 1.7" x 12.7")
Drivebays: N/A 

RC-C22 (2U)
Dimensions: 483(W) x 88(H) x 295(D) mm
(19" x 1.7" x 11.66")
Drivebays: 1 x Slim CDROM, 1 x Slim FDD, 1 x 3.5" Removable HDD

RC-C32 (3U)
Dimensions: 483(W) x 132.5(H) x 296.2(D) mm
(19" x 5.2" x 11.66")
Drivebays: 1 x Slim CDROM, 1 x Slim FDD, 1 x 3.5" Removable HDD

RC-C42 (4U)
Dimensions: 483(W) x 177(H) x 296.2(D) mm
(19" x 7" x 11.66")
Drivebays: 1 x Slim CDROM, 1 x Slim FDD, 2 x 3.5" Removable HDD

RC-P82 (8U)
Dimensions: 483(W) x 177(H) x 296.2(D) mm
(19" x 7" x 11.66")
Drivebays: 1 x Slim CDROM, 1 x Slim FDD, 2 x 3.5" Removable HDD

RC-P83 (8U)
Dimensions: 483(W) x 355(H) x 365(D) mm
(19" x 14" x 14.4")
Drivebays: 3 x 5.25, 1 x 3.5 open, 1 x 3.5 hidden