HP ProDesk 490 G2 Quickspecs page 51

QuickSpecs
Technical Specifications - Input/Output Devices
HP USB Keyboard
Physical characteristics
Electrical
Mechanical
Environmental
Keys
Dimensions (L x W x H)
Weight
Operating voltage
Power consumption
System interface
ESD
EMI - RFI
Microsoft® PC 99 - 2001
Keycaps
Switch actuation
Switch life
Switch type
Key-leveling mechanisms
Cable length
Microsoft PC 99 - 2001
Acoustics
Operating temperature
Non-operating temperature
Operating humidity
Non-operating humidity
Operating shock
Non-operating shock
Operating vibration
Worldwide — Version 1.8— May 22, 2014
HP ProDesk 490 G2 Microtower Business PC
104, 105, 106, 107, 109 layout (depending upon country)
18.12 x 6.47 x 0.96 in (46.03 x 16.43 x 2.44 cm)
2 lb (0.9 kg)
+ 5VDC ± 5%
50-mA maximum (with three LEDs ON)
USB Type A plug connector
CE level 4, 15-kV air discharge
Conforms to FCC rules for a Class B computing device
Functionally compliant
Low-profile design
55-g nominal peak force with tactile feedback
20 million keystrokes (using Hasco modified tester)
Contamination-resistant switch membrane
For all double-wide and greater-length keys
6 ft (1.8 m)
Mechanically compliant
43-dBA maximum sound pressure level
50° to 122° F (10° to 50° C)
-22° to 140° F (-30° to 60° C)
10% to 90% (non-condensing at ambient)
20% to 80% (non-condensing at ambient)
40 g, six surfaces
80 g, six surfaces
2-g peak acceleration
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