175C 1750C 1750S 3000A/1750A
1.75" Think size
VESA/Wall mountable
RISER Slot for add-on card
1.75" H x 12.25" W x 8" D
2 x 2.5" Hot Swap Bays with DVD/Blu-ray Bay
500A/500D 1U-1000S 500B 500D4
500A:Slim DVD/BR
500D:5.25 Open Bay
1U Rackmount/2 swap RISER or LP Slot 4 x 2.5" Swap Drives
600T 740N5B    
2 PCs in 1 box 5 Swap HD + Blu-ray