10V 600mA 0.6A Universal DC Power Adapter Charger For Lego Mindstorms EV3 NXT 45517 For
Amazon.com: UpBright New AC/AC Adapter Compatible with ONTOP Model A31185C Toy Transformer Lego Mindstorms Element 45541 NXT 10.8VAC 700mA 8W Class 2 Power Supply Cord Cable Wall Home Battery Charger Mains PSU :
AC/DC Adapter Charger For Lego Mindstorms EV3 NXT 45517 10V 700mA Power Supply | eBay