9V 1000mA power adapter with 5.5mm/2.1mm barrel jack. This power adapter is great for your Arduino projects. It will provide steady 9V up to 1000mA of current draw. The input is 100V to 240V AC, which works worldwide.
This is a 5V 1000mA USB power adapter that works with Raspberry Pi. The input is 100V to 240V, so it works in any country. The adapter does not have a cable, instead there is a USB 'A' type port on the bottom, where you can plug any USB cable in.