Features:
1) Accepts AT/ATX mainboard or industrial standard 14-slot backplane
2) Industrial Standard 19" 4U metal chassis
3) Five bays
4) Three 5.25", one 3.5" open + one 3.5" hidden bays
5) One 12cm cooling fan
6) Removable/washable fan filter
7) Lockable access door
8) Adjustable hold-down clamps

Specifications:
1) Drive bays:
a) 3 x 5.25" open
b) 1 x 3.5" open
c) 1 x 3.5" hidden
2) Power and reset switches
3) Power LED and HDD LED
4) Air-flow volume: 2.4 CBM/min.
5) Operational temperature range: 0 ~ 55° C

Power supply (All UL/CSA/TUV certified):
AT power:
1) PS/2 250/300/400W
2) 2 x 300/400W redundant hot swap (RPD-300ATX) with AT converter

ATX power:
1) PS/2 250/300/400W
2) 2 x 300/400/500W redundant hot-swap (RPD-300 ATX, RPD-400ATX, RPD-500ATX)
3) Dimensions: 19" x 18.5"/17.7" x 7" (W x D x H)
4) Gross weight: 37 lbs. (w/ PS2 power supply)