1. Effectively solve the problem that the motherboard PCI-E interface is not enough, and one interface can be expanded to 4; your good helper for mining2. Adopting a plug-in design, it can be directly connected to the motherboard interface without an extension cable, and it can be fixed to the chassis, which greatly improves the stability and reliability 3. The main control board adopts the PCI-E interface direct power supply mode, no external power cord is required, so that the main control board power is not interfered by the outside world, and the stability is higher 4. Reduce the number of adapters and adapter cables. One wire goes directly to the interface, effectively reducing interface interference and wire loss, ensuring data reliability, and improving work efficiency5. The high-strength anti-deformation baffle adopts the design of double-folding scheme, which is strong against pressure, stable, firm, strong and durable, and will not deform after long-term use.Product name: PCI-E expansion cardThe style of the heat sink is random and cannot be selectedModel: EUX104Interface: USB3.0Bus interface: PCI-E X1 (compatible with X4, X8, X16/graphics interface)Number of interfaces: PCI-E USB interfacex4Data transfer speed: 1000 (MB/s)System support: D0S, LINUX, WINXP, WIN7, WIN8, WIN10, etc.Product size: 120 (baffle board)x67x57mmMaterial:PCB+metalcolour:BluePackage Contents:1 x PCI-E expansion cardOnly the above package content, other products are not included.Note: Light shooting 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.