Features: 4 Slots brings great expendability. Plugs directly to the board without any extender cable, can be fixed to the case. PCI-E slot power solution, no extra power cable needed. Only one cable to the slot, easy and convenient to settle and install. With IC heat radiator. Specification: Brand: LINKPAL Bus Port: PCI-E Port Quantity: 4 X PCI-E USB Size: approx. 120 X 66 X 21 mm/4.72 X 2.6 X 0.83" Net Weight: approx. 41 g Gross Weight: approx. 73 g Package Size: approx. 130 X 90 X 25 mm/5.12 X 3.54 X 0.98" Supported OS: DOS, Linux, Windows XP/7/8/10 Package content: 1 X 1 to 4 PCI-E Adapter Card Note: 1. This extension is applicable to the mainboard PCI - E 1X slot, Please plug in the power cord for the floppy. When plug PCI - E extension must be computer broken wires plug again. 2. The form a complete set of wire rod is customized, never grab line to plug in. Remember that! 3. 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. 4. Please allow 1-3mm error due to manual measurement and make sure you do not mind before ordering. Due to the original production of raw materials shortage and production batches are different, the card slot and the cable color will have some differences, but the card is the same function, please rest assured absolutely does not affect the normal use, hope to understand. Colors will be shipped randomly!