Description:This is a professional PCI to USB extension board adapter, which provides super-fast and high-capacity data transfer solution for you. High quality module board allows super durability and performance, compatible well with your PC, plug and play.This combination card can support simultaneous operation of multiple USB and network connections on a standard computer through simple and fast Installation.With the combination of three USB 3.0 and one RJ45 gigabit interface,A multifunctional PCIe card combined with three USB 3.0 and one RJ45 gigabit interface provides the most convenient and economical solution for building or upgrading your computer.LTU3-52 p can upgrade to see your main board without 3.0 interface, allows you to enjoy the large capacity and high storage capacity and suitable for multimedia video clips, the server database, DVR, data storage. More than 5 USB3.0 interfaces is an excellent choice for users who have the multiple interface requirements. It also has two USB3.0 interfaces inside, it has 7 USB3.0 interfaces in total.USB3.0 has a breakthrough compared to USB2.0. First of all, its theoretical data transmission rate can reach the speed up to 5Gbps, which is ten times higher than the 480Mbps of USB2.0.In addition, it is compatible with USB2.0 and 1.1.Features:1. PCI to multiple USB port conversion: Provides 2 USB 3.0 port, meet your extending requirements, and simultaneously compatible with USB2.0 and 1.1.2.High speed transmission: 1Gbps transmission rate support, ensure fast and stable data transmission.3.Good contacts and suitability: compatible well for PC with PCI-Express slot, and support Windows XP / Vista/ win7/ win8/ win10 and more system. 4. Plug & play and hot swapping capability.5. USB3.0 interface and PIN provide 5V900MA super strong power supply to make sure sufficient and stable power supply6. Automatically ADAPTS to 10/100/1000mbps , supports full duplex and half duplex working mode7. Stable and reliable VIA Chip set and Compliant with Single-Lane (x1) PCI-Express throughput up to 5Gbps.Specifications:Adopt vl812-07 / vl805-06 dual chip solutionsProduct model: ltu3-52pExtension interface: USB3.0*5+ (built-in) USB3.0*2Applicable interfaces: pci-e 1x, pci-e 4x, pci-e 8x, pci-e16xPacking List:1x Expansion Board Card Adapter1x Drive CDNote:1.Please allow 1-3 cm error due to manual measurement. Thanks for your2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.understanding.