Features: brand new and high quality Dual port USB 3.0 female screw mount panel type to motherboard 20 Pin flat cable. You can use USB 3.0 type-A female convert USB3.0 (20pin header) directly connected to the motherboard The usb 3.0 A female connector can screw at the Panel. USB 3.0 port x 2 switch to USB3.0 20 pin cable. There are screw mount holes at USB 3.0 female end. Screw hole spacing is 22mm, Cable length 30cm/50cm/65cm/80cm Specifications: Name: USB3.0 20PIN to Double Port Female Baffle Line Color: Black Cable length: 30cm(11.81in) /50cm(19.68in) /65cm(25.6in) / 80cm(31.5in) (Optional) Screw Hole Spacing: 22mm/0.87in Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 x USB3.0 Panel Mount Cable