Features: This DC power cable supports charging 5V DC devices from the USB port. It does not support 12V products, and the interface internal positive and external negative. The size of the DC Connector OD: 5.5mm and ID: 2.5mm. Please check if it fits in the power jack on your devices. This 5V DC power cord widely compatible with various 5v devices, such as mini fans, desk lamps, routers, bluetooth-compatible speakers, etc. The USB to DC 5.5mm x 2.5mm jack power cable made of durable materials that can withstand high-strength bending and last longer. Package includes: 1 x USB to DC 5.5mm x 2.5mm power cable,easy to use, plug and play-. Specifications: DC Power :5V DC Connector : OD: 5.5mm x ID: 2.5mm Cable Length:1M/39.37in 2M/78.74in 3M/118.1in Material: Plastic Quanity: 1PC Package Includes: 1 PC x USB 5V Cable note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!