TP-Link T090060-2B1 This is a genuine AC adapter often used with TP-Link's Tapo 9V cameras. It can be used with other 9V devices if the voltage and connector match. Output: DC 9V 600mA Input: AC 100-240V 50/60Hz (-) Outer diameter: 5.5mm (+) Inner diameter: 2.1mm Included: ・AC adapter body ※No product box or instruction manual included. Regarding installation support, returns, exchanges, and warranty: We are unable to provide support due to this being a private, used sale. Thank you.