Specification: Model name: PCI-E one-to-four expansion card Color: blue Material: metal + plastic Bus port: PCI-E X1 (compatible with X4, X8, X16/graphics interface) Number of ports: 4*USB Size: about 120*67*57mm Product weight: 70g Support system: for DOS, Linux, Win XP/7/8/10 Features: Effectively solve the problem that the PCI-E interface of the motherboard is not enough, and the 4 slots bring great scalability. The power of the main control board is not interfered by the outside world, and the stability is higher. Insert the board directly, without any extension cords, and can be fixed on the chassis. Reduce the number of adapters and adapter cables, and the slot only needs one cable, which is simple and easy to use, reduces interface interference and wire loss, ensures data reliability, and improves work efficiency. 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. Please note that the form a complete set of wire rod is customized, never grab line to plug in. When plug wire must identify the direction, not to counter or offset, prevent burning device, plug wire when the socket of device first, then plug wire, avoid too hard plug socket pin is broken. Packing list: 1* PCI-E to PCI-E Adapter Note: 1. Due to the different production raw materials and production batches, the color of the card slot and the line will have some differences, which will not affect the function and use. (The colors will be shipped randomly!) 2. The size measured manually may have a slight error. 3. The color deviation may be different due to different monitor settings, please understand. Effectively solve the problem that the PCI-E interface of the motherboard is not enough, and the 4 slots bring great scalability. The power of the main control board is not interfered by the outside world, and the stability is higher. Insert the board directly, without any extension cords, and can be fixed on the chassis. Reduce the number of adapters and adapter cables, and the slot only needs one cable, which is simple and easy to use, reduces interface interference and wire loss, ensures data reliability, and improves work efficiency. 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. Please note that the form a complete set of wire rod is customized, never grab line to plug in. When plug wire must identify the direction, not to counter or offset, prevent burning device, plug wire when the socket of device first, then plug wire, avoid too hard plug socket pin is broken.