Effectively solve the problem that the PCI-E interface of the motherboard is not enough, and one interface can be expanded to 4 The plug-in board design is adopted, which is directly connected to the main board interface without extension cable, and can be fixed to the chassis, which greatly improves the stability and reliability! The main control board adopts the direct power supply mode of PCI-E interface, and there is no need to connect an external power line, so that the power of the main control board is free from external interference and has higher stability Reduce the number of adapters and transfer lines, and one line is directly connected to the interface, effectively reduce interface interference and wire loss, data reliability, and improve work efficiency Material: PC+metal colour: As shown Package Contents: 1 x Riser card 2 x Screw Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.