PCI-E is the most widely used interface in personal computers at present, almost all motherboards have this kind of slot, as long as the computer has redundant PCI-EX1/X4/X8/X16 interfaces can be installed. Siri shortcut operation Set the scene in advance in the or Tmall Genie APP and add it to the Siri shortcut. After setting, wake up Siri and speak your . The 433MHZ frequency antenna is used for remote control reception, which improves the effective distance of remote control reception and makes the remote control effect better. The 2.4G frequency antenna is mainly used for WIFI signal reception, which can effectively improve the signal quality through walls and increase the effective transmission distance. Tuya Smart APP remotely controls computer startup and shutdown, unlimited distance, as long as the mobile phone can access the Internet normally, you can control the computer anytime and anywhere. Power supply mode: PCIE power supply Scope of application: desktop Rated power: 0.2W Remote control distance: 20-50 meters Network connection: 2.4G wi-fi Remote control learning: up to 20 remote controls can be learned Remote control frequency: 433.92MHZ Bluetooth control: local Bluetooth automatic connection when disconnected from Colour:black Material:PCB Package Contents: 1 x USB Antenna Card 1 x USB Cable 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.