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Electrical
Operating voltage
+ 5VDC ± 5%
Power consumption
100-mA maximum (with four 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
Languages
30+ available
Keycaps
Low-profile design
Switch actuation
55 g nominal peak force with tactile feedback
Switch life
20 million keystrokes (using Hasco modified
tester)
Switch type
Contamination-resistant membrane
Key-leveling
mechanisms
For all double-wide and greater-length keys
Cable length
6 ft (1.8 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 90% (non-condensing at ambient)
Non-operating humidity
20% to 80% (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
SMARTCARD function
Support
All ISO 7816 smart cards
Interface
Reads from and writes to all ISO7816-1, 2, 3,
4 memory and microprocessor smart cards
(T=0, T=1)
Chipset
SCM STCII
Standard APIs
supported
PC/SC, EMV2000, SET
Power
USB Port
Short circuit detection (protects smart card
and reader)
Power supply compliant with ISO7816 and
EMV (5V, 60 mA)
Supports 3-V and 5-V cards
Power consumption
250-mA maximum draw (50 mA for the
keyboard with three LEDs ON and 200-mA
maximum startup current using a high-
current, 60-mA smart card)
QuickSpecs
HP Compaq dc7700 Business PC
Technical Specifications - Input/Output Devices
DA - 12543 Worldwide QuickSpecs — Version 3 — 9.28.2006
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