The laptop's M.2 standard network card contains USB2.0 signals and 3.3V power supply. This product leads the USB signal to the USB HUB chip and boosts the 3.3V to 5V/1A voltage to supply the USB device Because the USB signal is output from the computer, some computers screen this signal or do not output the signal at all, which will cause this card to be unusable. It is not a problem with the card. If the internal bridge USB is damaged, this card cannot be used This product is only suitable for M.2 with Bluetooth network card (KEY-A) interface, CNIV interface cannot be used Model No:M.2(-E) to dual-port USB2.0 Product Interface: 5PIN1.0mm supporting 2 USB cable Product interface: M.2 (AKEY) 2230 Product rate: 480Mbps Product Control: FE1.1S Support system: For WinXP/2003/VISTA/2008/7/8/10/1132/64BIT/Linux Notes Due to different batches, the printed words on the product will be different, which does not affect use Colour:Black Material:PCB Package Contents: 1x Riser Card 2x Connection Cable Only the above package content, other products are not included. Note: Light reflection 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.