100% Electrically and Mechanically Safe
Over voltage protection, High temperature and Short-Circuit protection
Power: 65 Watt
Input Voltage: 100-240V 50-60Hz 1.8A
Output Voltage: DC 20V
Output Current: 3.25A
DC Pin Size: Rectangle USB Type Yellow Tip + With Centre Pin

Some of the compatible device list:

ThinkCentre M73 M93p, ThinkCentre Tiny M700 models
Lenovo Thinkpad T440
Lenovo Thinkpad T450
Lenovo Thinkpad T460
Lenovo Thinkpad T460s
Lenovo Thinkpad L440
Lenovo Thinkpad L460
Lenovo Thinkpad E531
Lenovo Thinkpad E550
Lenovo Thinkpad E560
Lenovo Thinkpad E570
Lenovo Thinkpad X240
Lenovo Thinkpad X250
Lenovo Thinkpad X260
Lenovo Thinkpad X270
Lenovo X1 Carbon
Lenovo Yoga
Lenovo Z40/Z50/Z70