Adapter 12V 2A Dual Plug

From the shop's description

This AC/DC Power Adapter design with a flat US plug to 5.5mmx2.1mm Male plug and long cable. It works at AC100V to AC240V 50/60HZ and output DC 12V/2A with a 5.5×2.1mm center-positive barrel jack. It works great for any device with the DC 12V/2A power supply. Such as the Arduino board and so on. Features: Input voltage: 100~240V AC Rated Frequency: 50~60Hz Output Voltage: 12V DC Max Output Current: 2A Adapter Standard: US Standard Package List: 1 x 12V-2A AC/DC Power Adapter with Cable