SPECIFICATIONS Model YY-R420 / YY-R422 YY-R421 / YY-R423 Case dimension (WxHxD) 19.0"x7.0"x17.7" 483mm x 177mm x 450mm 19.0"x7.0"x21" 483mm x 177mm x 530mm Motherboard configuration Baby AT / ATX / Extended ATX / 8-14 slots Passive Backplane Drive configuration 3 x 5.25" exposed, 2 x 3.5"exposed, 1 x 3.5" hidden Built in system cooling fan 2 x 9cm (57CFM) Ball Bearing Fan Number of slots 7 (maximum to 14) Controls Power switch, Reset switch, Power Alarm buzzer reset, Power on LED, HDD LED, Power error LED Air Filter One removable filter at front panel Hold-down Clamp Including 7 slots of adjustable card retainer Power Supply ATX 250W/300W 100-240 vac / 47-63Hz Mini Redundant Hot-Swap 300W*2 UL, CSA, TÜV, CE approved, DoC compliance MTBF: 30,000 hours / V01+age Construction Materials Recyclable materials Hardened aluminum alloy handle; Heavy-duty steel Chassis R422, R423---Cool Glavanized R420, R421---SPCC+Nickel+Plated EMI CE/FCC compliant Operation temperature 32 to 122oF (0 to 50oC) Net Weight (w/o power) 12.4kg/27.3lbs 13.5kg/29.7lbs Gross Weight (w/o power) 15.3kg/33.7lbs 16.2kg/35.6lbs Packing Strengthen carton box with EPE foam Color Cool grey, black (option) Options Rear window for 8-14slots passive backplane Telescopic slider 18"/22" 6cm cooling fan, rear mounted Fan/HDD bracket Packaging / Shipping 3.8cuft/each carton