Everywhere you look, computer peripherals have become quite expensive. I am confident that the items I am selling are cheap. ● This product's 1200Mbps rate consists of two operating frequencies, 2.4G and 5G, with 2.4G at 300Mbps and 5G at 867Mbps, dual-band simultaneous, and is composed of 4 antennas. It has less interference, is fast, has a wide transmission distance, and improves wall penetration performance. ● It is recommended to insert the Wi-Fi USB adapter into the USB port on the back of the computer. This is because the USB port on the back can supply more power. (The USB interface on the front of some computer hosts may have insufficient power or is not supported) Product Features: 1. Dual frequency switching that supports two operating frequency bands, 2.4GHz and 5GHz. 2. Optimized 4-antenna combination, high signal gain, 180-degree free rotation design. 3. The transmission speed of USB 3.0 is as high as 5Gbps, which effectively improves the transmission stability of the network card, and high-speed transmission will not freeze. 4. Heat dissipation hole design, effective and rapid cooling to maintain a normal working environment and extend the lifespan. 5. Strong high-speed wall penetration, 4-antenna signal is strong and has high transmission.