Specification: Feature: Imported Chip, high quality Name: PCI-E one turn four expansion card Bus interface: PCI-E X1 compatible with X4, X8, X16 slot Interface type: PCIE to 4-port USB 3.0 Product size: 120mm bracket length *67mm*57mm Support system: DOS, Linux, Windows XP/7/8/10 Effectively solve the motherboard PCI-E interface is not enough, an interface can be extended out of 4; The use of plug-in design, not through the extension line directly inserted into the motherboard interface, and can be fixed to the chassis, stability and reliability greatly improved The main control panel uses PCI-E interface direct power supply mode, and no external power line is needed, so that the main board power is free from external interference, and the stability is higher Reduce the number of adapter and transfer line, one line directly to the interface, effectively reduce the interface interference and wire loss, to ensure data reliability, so as to improve work efficiency Package List: 1 X PCI-E to 4 USB 3.0 Converter Card