Dell Precision 7720 - AC Adapter; Contactless Smart Card; Physical Dimension

• Discharge: 0°C to 70°C (32°F to 122°F)
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
(maximum)
3.50 A
Input frequency 50 Hz to 60 Hz
Output power 240 W
Output current 12.31 A
Rated output
voltage
19.50 VDC
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
• ISO14443A — 160 kbps, 212 kbps, 424 kbps, and 848 kbps
• ISO14443B — 160 kbps, 212 kbps, 424 kbps, and 848 kbps
• ISO15693
• HID iClass
• FIPS201
• NXP Desfire
Physical dimension
Feature
Specification
Weight (pounds/
kilograms)
7.5 lbs (3.40 kgs)
Dimensions
Height
(inches/mm)
Front (non-touch) 1.13 inches ( 28.7mm)
System specifications 63