Features: Good quality materials, heat-resistant, not easily aging, Specially for serious gamers and computer enthusiasts who require high performances and reliability. Shielded wire can effectively eliminate, suppress or isolate interferences, and improve the stability and reliability of USB signal transmission. The design of shielded cable can filter out electromagnetic radiation or interferences in signal, making digital signal transmission between devices more stable and reliable. It can eliminate noise signal generated by electromagnetic and ensure a more stable data transmission rate. USB 9-pin connection on the mainboard, board to board connection. Attention: This product is a female head to female head, with holes on both side of the rubber not male and female extension wire. Specifications: Item：USB 9Pin Female to Female Cable Material:PVC Length：approx 30CM/11.8in 50cm/19.7in 70CM/27.56in Package Includes: 1PC USB 9Pin Female to Female Connector Cable note: Please allow 1-2cm errors due to manual measurement, please make sure that you do not mind before order. Due to the differences between different monitors, the picture may not reflect the actual colors of the item