Description Features: brand new and high quality It adopts the main control chip uPD720202 , the leader of the USB3.0 association, which is also the main control of the third-generation product D720202. Expansion cards that can support LINUX systems on the market The PCB comes with a booster chip, and low-current devices do not need to be plugged in. When using high-current devices, you need to plug in a small 4PIN power interface to work The expansion card adopted greatly ensures the stability of USB power supply capacitor . Direct cooperation with the original factory can provide strong after-sales technical support, and the earliest update of firmware and drivers. Let the pro-card use . Package Includes: Package A 1PC x Expansion Card 1PC x Power Cord 1PC x Screw 1PC x Screwdriver Package B 1PC x Expansion Card 1PC x Power Cord 1PC x Screw 1PC x Screwdriver 1PC x USB 3.0 Cable Specifications: Compliant with PCI-Express 2.0; USB3.0 ; xHCI 1.0 Main Control chip: uPD720202 Maximum transmission rate : 5Gbps, Transmission rate: 5000/480/12/1.5Mbps Built-in small 4PIN enhanced power-on interface Support for Windows XP/2003/Vista/win7/win8/2003/MAC10.8 and above systems. note: This product is an for M.2 expansion card, which requires a free KEY-M slot on the motherboard to be installed and used. It cannot be installed and used in the PCI slot, and must not be inserted into the PCI slot. Does not support Sata protocol for KEY B-M slot, only supports PCI-E protocol for KEY B-M or KEY-M slot