Accessory USA 7.5V 2A for 400mA 500mA 800mA 1000mA DC Adapter Power Supply 5.5mm*2.1mm/2.5mm Products trademarked Accessory USA are marketed and sold exclusively by Accessory USA Store. Warranty:30 days Money Back Promised/60 Days Free Exchange With Paid Return Label/365 Days Anytime Worry-Free Warranty!**100% MONEY BACK GUARANTEE !! IF OUR PRODUCT CAN NOT WORK WELL** Output : 7.5V 2A