Specifications

RMOC U9 (P/N 9677-U). 
Dimensions: 14" high by 19" wide by 20" deep (356 x 483 x 508 mm), this chassis is FCC certifiable^**.
Power: A 100-120/200-240 VAC, 47-63Hz system power supply delivers +5@60, +12@13, +15@5, -5@0.5 , -12@1 , and -15 VDC@Amps.
Capacity: Unibus - 7Hex and 2 Quad boards.
PC - AT style Motherboard, 3, 5-1/4" Bays, 2, 3-1/2" bays, 1 hidden, 1 exposed.
Weight: 55 pounds configured w/o  Unibus boards.
Material: .100 thick aluminum.
Notes: Cooling fans and space are included for user's hex-height, 4-slot DD-11 Unibus backplane, PC motherboard, diskette and hard drives (one hidden and four visible half-height bays)