Description: Special design: 2-layer PCB bard designing, compliant with PCI express 2.0, 1.1 Specification. Function: 1-slot PCI-E 1X to 4 slot 16X riser card with high-speed USB 3.0 cable. The slot is equipped with a fixed buckle, which is convenient to remove and fix the graphics card, so that the graphics card will not fall off from the slot. Fitment: High speed USB 3.0 shield cable is for 1U,2U,3U chassis. Support 4 port high speed PCIe 16X card. Solid capacitor provide extra stable power supply for PCI-E card. SATA revolving 6-pin power cord is more powerful and reduces the burden on the motherboard. Gold-plated contacts, with best conductivity and long shelf life. Ensure proper airflow in the system by custom positioning in close fit. Supported OS: For Linux, , Windows XP/7/8/10. It has solved the problems of the traditional line welding spot burning, the attenuation of transmission signal and the lack of wire length. Specification: Material: ABS plastic Size(USB cable): Length 60cm/23.63" (Approx.) Size(Board): approx.12.8x4.2x1.0cm/5.03x1.65x0.39inches Weight: 200g Bus Port: PCI-E Port Quantity: 4 X PCI-E USB Package Includes: 1Set PCI-E 16X adapter 1Piece PCI-E 1X Riser Card 4Pieces USB 3.0 Cable 4Pieces SATA 15Pin-6Pin Power Cable Note: Please allow 1-3mm error due to manual measurement. The form a complete set of wire rod is customized, never grab line to plug in. Remember that! When plug wire must identify the direction, not to counter or offset, prevent burning equipment, plug wire when the socket of equipment first, then plug wire, avoid too hard plug socket pin is broken.