Form Factor	4U
M/B Form Factor	Extended ATX (12”x13”)
Dimensions (Dx Wx H)	699 x 432 x 176 (mm), 27.5” x 17” x 6.9”
Drive Bays	RM41824: 24 x 3.5” Hot-swap HDD (2 x 12-bay HDD cage), 2 x 2.5 (Option)： RM41848: 48 x 2.5” Hot-swap HDD (2 x24-bay HDD cage), 2 x 2.5 (Option)：
PSU Form Factor	PS/2 Single or 1+1 Redundant
Indicators	1 x Power Status, 1 x HDD Activity, 2 x LAN Activity, 1 x Fan Failure & Overheat
Front Control	Power On/Off, Alarm Mute, System Reset, 2 x USB 2.0
System Security	Intrusion Switch
Cooling Fans	Middle: 4 x 80mm (T=38mm), PWM, Hot-swap , Rear: 2 x 80mm (Option)
Expansion Slots	7 x Full Height and Full Length
HDD Backplane	12Gb/s mini-SAS or with expander on-board, 12Gb/s Mini-SAS HD Expander
Net Weight	37.0 kg (with PSU)
Gross Weight	38.0kg
Front Bezel	Option
Cubic Feet	8.53