Safety: Our Products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications. OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) This Adapter is a Brand New, High Quality Never USED (non-OEM) Compatibility: AC DC Adapter For Huion A2 Super Thin, A3 Tatoo Tracing Light Table, A4 Artcraft Tracing Light Pad LED Light Box Power Supply Cord Note:please make sure the model of your device before buying Accessory USA AC DC Adapter For Huion A2 Super Thin, A3 Tatoo Tracing Light Table, A4 Artcraft Tracing Light Pad LED Light Box Power Supply Cord