BE1: AC/DC Adapter - Input 120VAC Output 12VDC @ 500mA.
Output connector 3.5mm phone plug, tip positive.
2.6"H x 1.93"W x 1.73"D.

BE120: AC/DC Adapter - Input 120VAC Output 12VDC @ 500mA.
Output connector 2.5mm phone plug, tip positive.
2.6"H x 1.93"W x 1.73"D.

BE2: AC/DC Adapter - Input 120VAC Output 12VDC @ 500mA.
Output connector 2.1 X 5.5mm barrel connector, sleeve positive.
2.6"H x 1.93"W x 1.73"D.