Usb Peripherals - Dell PowerEdge M420 Technical Manual

Maximum shock
Operating One shock pulse in the positive z axis (one pulse on each side of the system) of 31G for up
to 2.6 ms
Storage Six consecutively executed shock pulses in the positive and negative x, y and z axes (one
pulse on each side of the system) of 71G for up to 2 ms
Altitude
Operating −15.2 m to 3048 m (−50 ft to 10,000 ft)
Storage −15.2 m to 12,000 m (−50 ft to 39,370 ft)
Airborne contaminant level
Class G1 or lower as defined by ISA-S71.04-1985

USB peripherals

USB peripherals are supported through the front USB ports, which are USB 2.0 compliant.
PowerEdge M420 Technical Guide
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