Specification: Product model: 5B19-D Product color: black Product material: ABS material+USB iron head Chipset: Realtek RTL8811CU WiFi Speed: 2.4GHz-200Mpbs 5GHz-433Mpbs Transmission power: 802.11b (CCK) 11Mbps: 17+/-2dBm 802.11g (OFDM) 54Mbps: 14+/-2dBm 802.11n (OFDM) 54Mbps: 14+/-2dBm 802.11ac (AC80) MCS9: 12+/-2dBm Frequency: Dual Band 2.4GHz + 5GHz OS: Windows Vista/XP/Win7/8/10/11, Driverless, Plug and Play Product size: about 171*37*12mm/6.73*1.45*0.47inch Package size: about 180*70*16mm/7.08*2.75*0.62inch Net weight: 45g Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x USB Wireless Network Card 1. External Antenna: 5dBi high gain external antenna, which transmits signals farther, smoothes data transmission, and has better penetration. The signal is far away, which is superior to the built-in antenna network card. 2. Dual Band 2.4GHz 5GHz: Dual band wireless rate of 650Mbps (2.4GHz 200Mbps+5.8GHz 433Mbps), making online video and games faster and smoother. 3. Faster Transmission Speed: It adopts the 11AC standard and supports the WiFi 5 protocol. Compared to WiFi 4, it has a qualitative leap in transmission speed. It can connect 5G frequency signals and experience the high-speed performance of 5G networks 4. Plug and Play: The driveless version has a built-in driver, which eliminates the need to download CDs and install drivers. It is automatically installed after plugging into the USB interface of the computer, leaving the tedious installation process behind. Plug and Play allows you to instantly experience high-speed networks.