AC-DC Switching Regulated Power Supply 13.8V DC @ 1000mA; 2.1 x 5.5mm (+) center polarity
by PHC Enterprise, Inc.
$16.00
Part #: SW-131V
Input: 100~240VAC
Output: 13.8VDC @ 1000mA
Plug: 2.1 x 5.5mm 
Wall-mount