1. The Smart App On The Mobile Phone Can Remotely Control The Computer To Turn On And Off, And The Distance Is Not Limited. As Long As The Mobile Phone Can Access The Internet Normally, The Computer Can Be Controlled Anytime And Anywhere 2. The Switch Card Supports The Function Of Locking The Chassis Button Key. When This Function Is Turned On, The Switch Key Of The Computer Host Cannot Be Switched On And Off, Preventing The Baby From Mischievously Shutting Down And Causing Important Files To Be Lost And Damage The Computer System. 3. Powerful And Compatible, Widely Used, Using The Universal Pci-E Interface Without External Power Supply, Pci-E Is Currently The Most Widely Used Interface In Personal Computers, Almost All Motherboards Have This Slot, As Long As The Computer Has Spare The Pci-E X1/X4/X8/X16 Interface Can Be Installed 4. Timing Control, Support Multi-Person Sharing 5. Mobile Phone Remote Control Remote Switch Wireless Network Card Interface Type: PCIE Support Agreement: Ac Agreement Wireless Standard: IEEE 802.11g, IEEE 802.11b, IEEE 802.11n Transmission Rate:600Mbps Working Frequency Band: 2.4G Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:black Material: ABS Size:about 3 x 19 x 10.5cm Package Contents: 1 x Network Card 2 x Antenna 1 x Bluetooth Cable 1 x Chinese And English Manual 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.