US Power adapter DC 3V 4.5V 5V 6V 7.5V 8V 9V 10V 12V 15V 500mA 1A 5.5mm x 2.1mm AU $9.95 to AU $11.48
50pcs DC Switching power supply 5V 6V 9V 12V 500mA 1A adapter 5.5mm x 2.1mm US AU $168.61 to AU $183.94
50pcs DC Switching power supply 3V 4.5V 8V 10V 500mA 1A adapter 5.5mm x 2.1mm US AU $168.61 to AU $176.27