Description:The PCI-E expansion riser card adapter is designed to convert 1 PCI-E 1X slot into 4 PCI-E 16X slots. The 4 PCI-E 16X slots could connect sound card, graphics card and network card simultaneously and work in an independent non-interfering way. It is the perfect and practical solution to instantly expand PCI-E slots in crowded systems or on the motherboards with limited PCI-E interface.Features:1. This riser card can convert 1 PCI-E 1x slot into 4 PCI-E 16x slots, effectively solve the problem of lack of PCI-E slot on the mainboard.2. Plugs directly to the board without any extender cable, can be fixed to the case, improve the stability and reliability largely.3. Reduce the number of connections to reduce interference and cable loss, ensure the reliability of data.4. USB connector with gold-plated processing, reducing the interference between the interface and enhance the integrity of the data.5. Increase the six LED, LED lights flashing when the boot.6. Increase the BIOS, enhanced compatibility with the motherboard and graphics card and reduce power consumption.Specifications:Type: PCI-E 1 to 4 Riser Card, PCI-E 1 to 4 Riser Card +4pcs 6 pin Extended Cable(Optional)PCB Color: BlackModel: PCE4PCE-A01Interface: PCI-E 1X (Compatible With X4,X8,X16 Graphics Card Interface)Support System: for Windows, for LINUX MACWeight:  Approx. 63gPackage List:1 * PCI-E Riser Card Or1 * PCI-E Riser Card 4 * 6-pin Cable Note:Due to Windows limit the number of graphics cards, WIN10 system can only recognize 8 graphics cards, WIN7 can only recognize 6 graphics cards.  Please use the revised graphics card driver and the same type of graphics card on one motherboard . A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A