Expansion Bays 1 x 5.25" (External Access) 1 x 3.5" (Internal Access) 1 x 3.5" (External Access) 1 x 5.25" External Slim Line (1/6H) 2 x 5.25" (External Access) 2 x 3.5" (Internal Access) 2 x 3.5" (External Access)

2 x 2.5" SFF (Internal Access) 3 x 5.25" (External Access) 3 x 3.5" (Internal Access) 3 x 3.5" (External Access) 4 x 5.25" (External Access) 4 x 3.5" (Internal Access)

5 x 3.5" (Internal Access) 5 x 5.25" 5 x 5.25" (External Access) 5 x 3.25" (Internal Access) 6 x 3.5" 6 x 3.5" (Internal Access)

6 x 5.25 (External Access) 7 x 5.25" (External Access) 7 x 3.5" (Internal Access) 8 x 3.5" (Internal Access) 9 x 5.25" (External Access) 12 x 5.25" (External Drive Bays)