high-quality products. Product name: suitable for Lenovo chassis with ordinary motherboards transfer cable switch cable USB cable audio cable three-piece set. Product role: Applicable to use with ordinary ATX motherboard and Lenovo chassis. USB 9-hole plug into the USB 9-pin socket on the ATX motherboard, the 11-pin end is docked with Lenovo's 11-hole USB cable. Audio 9-hole plug ATX motherboard audio 9-pin socket, the 13-pin end is docked with the 13-hole audio cable of Lenovo chassis. The 8-hole switch cable is a separate set of 4 jumpers, just plug it in according to the position of the switch jumper on the ATX motherboard, no need to distinguish the positive and negative, the 13-pin is docked with the 13-hole switch of the Lenovo chassis (the hard disk indicator is inserted backwards and the light does not light up) , but will not burn the board, the reverse is fine). The three cables are all designed to prevent wrong insertion. If you can plug it in, it is right. If it is inserted wrongly, it cannot be inserted. You don't have to worry about the problem of damaging the computer. The audio and switch are both 13 holes, but these two foolproof positions It's not the same, it won't go wrong. Notice: This is for ordinary motherboard installed in a Lenovo chassis. Type:PCI-E Riser Model Number:Computer Graphics Card Core bit width:64bit Graphics slot:PCI EXPRESS Interface:HDMI-compatible+dvi+vga Video memory type:DDR2 Video memory bit width:64bit Core frequency:550MHz (MHz) Video memory frequency:266 (MHz) color:Random color (cannot choose specified color) Material:PVC+24AWG tinned copper wire Package Contents: 3 x Switch Cable(about 20cm in length) 3 x USB Cable(about 10cm in length) 3 x Audio Cable(about 10cm in length)