1X，2X，4X，8X，16X all compatible(both 1-16X and 16-16X can use), circuit board PCIe switch wiring is new type, more safe, more effective and more practical. Solve the traditional wire welding point fragile burning, transmission signal attenuation, the problem such as line length is not enough. Features: video card power supply USES two FP solid-state capacitors, make graphics more stable power supply security. Parallel transfer tapes or big 4 pin interface to strengthen the power supply, make the graphics card power independence from motherboard, so as to reduce the financial burden on the mainboard when meet more graphics.Adopting the original into the connector, the graphics card slot graphics card contact is better. PCI - E connector use multilayer shielded wire, the longest can meet 3 m without attenuation of the signal. PCI - E connector plug all the gold-plated, compare abrasion resistance and increase the conductivity. Slots with fixed card buckle, remove the graphics card and the fixed graphics, the graphics card will not fall off from the slot. Notice: this extension is applicable to the mainboard PCI - E slot �1X 2X 4X 8X 16X）. Please plug in the power cord for the floppy. When plug PCI - E extension must be computer broken wires plug again. The match cable is customized, do not casually use other cable. When plug wire must identify the direction, not to counter or offset, prevent burning equipment. 4 pin head (floppy disk interface) is a standard parts, in the middle button fool proof, plugged into a button hook seat after the middle seat, so it is not easy to fall off. Dual-core graphics Suggestions with the old line, the mainboard is 16 or more than 2X 16X also recommends using the old line, 290X display also suggests using the old line