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Physical Characteristics
Keys
104 (US) layout or 105 (EU) layout
(depending upon country)
Dimensions
(L x W x H)
17.67 x 6.62 x 1.38 in
449 x 168 x 35 mm
Weight
1.7 lb
0.77 kg minimum
Electrical
Operating voltage
+ 5VDC ±5%
Power consumption
50-mA maximum (with three LEDs ON)
System interface
USB Type A plug connector
ESD
CE level 4, 15-kV air discharge
EMI - RFI
Conforms to FCC rules for a Class B computing device
Microsoft® PC 99 - 2001
Functionally compliant
Mechanical
Keycaps
Stepped -profile design
Switch actuation
55-g nominal peak force with tactile feedback
Switch life
20 million keystrokes
Switch type
Contamination-resistant switch membrane
Key-leveling mechanisms
For all double-wide and greater-length keys
Cable length
7 ft
2.2 m
Microsoft PC 99 - 2001
Mechanically compliant
Acoustics
43-dBA maximum sound pressure level
Environmental
Operating temperature
50° to 122° F (10° to 50° C)
Non-operating temperature
-22° to 140° F (-30° to 60° C)
Operating humidity
10% to 95% (non-condensing at ambient)
Non-operating humidity
0% to 95% (non-condensing at ambient)
Operating shock
40 g, six surfaces
Non-operating shock
80 g, six surfaces
Operating vibration
2-g peak acceleration
Non-operating vibration
4-g peak acceleration
Drop (out of box)
26 in (66 cm) on carpet, six-drop sequence
Drop (in box)
42 in (107 cm) on concrete, 16-drop sequence
Approvals
UL, cUL, FCC, CE, TUV GS, VCCI, BSMI, C-Tick, KCC, USB-IF, WHQL, EN/IEC 60601-1, IP66/NEMA4X
Ergonomic compliance
ANSI HFS 100, ISO 9241-4, and TUVGS
QuickSpecs
HP Compaq Pro 4300 Small Form Factor Business PC
Technical Specifications - Input/Output Devices
DA - 14288 North America — Version 22 — December 16, 2013
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