PCI-E to USB3.0 expansion card Lossless transfer, high-speed transmission, stable and compatible This product is limited to desktop computers and with standard mini pci-e slot (not for msata slot, nor for mini pci-e wireless network card slot, it must be standard mini pci-e slot!) Computer is ! It has good electrical conductivity, strong oxidation resistance, and more stable transmission Number of interfaces: 2 ports USB3.0 Applicable slot: MINI PCI-E Bus bandwidth: about 6Gb or s Product size: 50 x 30MM Working environment: 0-55 , humidity 85percent Storage temperature :-20-65, humidity 85percent Material:PCB colour:As shown Package Contents: 1 x Expansion Card 2 x USB Cable Only the above package content, other products are not included. Note: Light 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.