Ac Adpter; Contactless Smart Card - Dell Precision 7720 Owner's Manual

Height 18.45 mm (0.73inches)
Width 71.30 mm (2.81inches)
Weight 18.45 mm (0.73inches")
Voltage 400.00 g (0.88 lb)
Life span
•
•
Temperature range:
Operating
•
•
Non-Operating -20°C to 65°C (4°F to 149°F)
Coin-cell battery 3 V CR2032 lithium ion cell

AC adpter

Features Specification
Input voltage 100 VAC to 240 VAC
Input current 3.50 A
(maximum)
Input frequency 50 Hz to 60 Hz
Output power 240 W
Output current 12.31 A
Rated output 19.50 VDC
voltage
Dimensions: 240 W
Height 25.40 mm (1 inch)
Width 200 mm (7.87 inches)
Depth 100 mm (3.94 inches)
Weight 0.85 kg (1.88 lb)
Temperature range:
Operating 0°C to 40°C (32°F to 104°F)
Non-Operating –40°C to 70°C (–40°F to 158°F)

Contactless smart card

Features Specification
Supported Smart
•
Cards and
•
technologies
•
36 Technical specifications
300 discharge/charge cycles
1000 discharge/charge cycles (LCL)
Charge: 0°C to 50°C (32°F to 158°F)
Discharge: 0°C to 70°C (32°F to 122°F)
ISO14443A — 160 kbps, 212 kbps, 424 kbps, and 848 kbps
ISO14443B — 160 kbps, 212 kbps, 424 kbps, and 848 kbps
ISO15693