Universal notebook power adapter tips

The following table contains some information about tips for 70 W universal notebook power adapters (for example, from Targus, Kensington, or iGo). I have numbered the pins starting at the key in the connector. In general, pins 1 and 2 supply power to the computer; pin 1 is negative and pin 2 is positive.

Tip # Voltage Pin 1-3
resistance (kΩ)
Pin 1-4
resistance (kΩ)
Connector
ID (mm)
Connector
OD (mm)
Connector
length (mm)
System and other notes
2 19.0 5.9 87 1.7 5.0 10.8 Compaq, HP
3 19.5 5.2 80 2.5 5.5 12.7 Averatec, Compaq, Dell, Fujitsu, Gateway, HP, Toshiba, Winbook
4 16.6 14 165 2.5 5.5 11.1 IBM, Panasonic
5 Please submit information
6 15.3 47 390 3.0 6.5 10.2 Toshiba
8 24 3.5 Apple PowerBook G3
9 19.6 5.2 79 N/A N/A N/A Dell (Hirose connector)
10 Please submit information
11 16.6 14 165 pin 6.4 10.5 Fujitsu, Panasonic, Sony (EIAJ-05 connector)
12 failure 4.7 75 pin 6.4 10.0 Sony (EIAJ-05 connector; NOTE: causes power supply to shut down)
14 Please submit information
15 24 2.5 Apple PowerBook G4
16 Please submit information
18 Please submit information
20 19.6 5.1 79 pin 7.3 12.3 Dell (voltage is from outer ring to inner ring)
22 Please submit information
23 Please submit information
31 Please submit information
34 Please submit information
35 Dell (Latitude D-series)