Features:  This riser is stable and safety for it with 4 solid capacitors which can make the the power supplys of graphics card more stable and safety.  4PIN, and two graphic card 6PIN interface design, makes the graphics card power supplys independent from the motherboard, so as to reduce the burden of the motherboard when connecting multiple graphics cards.  The PCI-E adapter is made of multilayer shielded wire and can be connected up to 3.0m without signal attenuation.  The USB cable is soft and stable, easy to route, and the graphics card can be placed easily. The slot is equipped with a fixed buckle, which is more convenient to remove the graphics and fix the graphics  and the graphics will not fall off from the slot.  Wide applications: Compatible with all WINS systems, LINUX, MACos.    Specifications:  Material: PCB  Color: black, red, blue (optional)  Cable length: 60cm  Connector: PCI-E 1X, PCI-E 16X  Package size: 180 * 150 * 20mm / 7.1 * 5.9 * 0.8in  Package weight: 110g / 3.9ounce    Note:  This extension cable is suitable for motherboard PCI-E slot (1X 2X 4X 8X 16X). Please plug in the floppy drive power cord when using it. When plugging or unplugging the PCI-E extension cable, the computer must be disconnected with the power cable and then plugged in.  The SATA15pin is a standard power supply component. Check whether the power supply is properly inserted.    Packing list:  1 * PCI-E Card Adapter Set