1. The PCI-E connector uses multi-layer shielded wire, which can be connected to a maximum of without attenuating the signal. 2. The adapter card has a 6PIN interface and a 12V enhanced DC-DC to enhance the power supply, so that the graphics card power supply is from the motherboard, thereby reducing the burden on the motherboard when multiple graphics cards are connected. 3. The graphics card slot adopts the original connector, and the contact between the graphics card and the connector is better. 4. The transmit signal is PCI-E 1X all the time. 5. The USB 3.0 cable has double shielding: shielded net coil and aluminum foil protector, ensures fast and stable data transmission. The color of the slot of the PCIE 16X adapter card is random, and the color of the USB data cable is random. Can't choose. Material:PCBA board + metal colour:Black Package Contents: 5 x PCI-E 16X card 5 x PCI-E 1X card 5 cord 5 x USB 3.0 cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.