Computer bluetooth switch No driver is required to switch the machine within 10 . One card can only be connected and paired by one mobile phone. PCl-E 1X interface, no need for power supply Thickened gold , more durable. A card can only be paired by one mobile phone. After the pairing is successful, other mobile phones cannot pair the card. Easy installation Connect to the power-on and reset pins of the motherboard. The pins are not divided into positive and negative. Made of high-quality materials, durable. Type: Computer Bluetooth Switch Interface: PCI-E 1x Control : Mobile phone Bluetooth App Control interface: power on/off/reset Remote control distance: 10 Size: 65.3 x 41mm (without bracket) line length 320mm Power consumption: Less than 0.05W Material: PCB colour: black Package Contents: 1 x Switch Card 1 x 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.