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)