Upgraded to 5.2 Bluetooth, the speed is faster and more stable, and it can be connected to multiple Bluetooth devices at the same time. -MIMO multi-threading technology, high-efficiency transmission, faster and more stable. Product model: MT7921 Wireless Technology: 802.11A/B/G/AC/AX Wireless speed: 2.4G/574Mbps 5G/1200Mbps Built-in Bluetooth: 5.2 Bluetooth Product interface: NGFF M2 Fast and Efficient: -MIMO Technology Support system: Win10, Win11 Color: green Material: PCB Note: different batches, the appearance of the label may be slightly different, does not affect the use! Package Contents: 2 x Network Card 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.