Male DC Power adapter - 2.1mm plug to screw terminal block
$2.04
6xAA Battery Holder with DC2.1 Power Jack
$3.27
Stud Battery Holder 8x AA (12V)
$0.61
Battery Holder (6 x AA)
6xAA Battery Holder with DC Barrel Jack and ON/OFF Switch
$3.00
$0.90
Mean Well 12V 5A 60W Power Supply (GST60A12-P1J)
$31.32
15V 4.3A 65W Power Supply
$32.54
$9.76
12V 2A Power Supply with 2.1mm Barrel Jack
$17.02