Alfa AWUS036ACS AC750 Dual-Band USB WiFi Adapter with 2dBi Antenna

The Alfa AWUS036ACS is an AC600 USB WiFi adapter based on the RTL8811AU chipset and supporting IEEE 802.11a/b/g/n/ac wireless standards. It operates across both 2.4 GHz and 5 GHz frequency bands, giving compatible computers access to dual-band wireless networking through a compact external device. Wireless data rates reach up to 150 Mbps with 802.11n and up to 433 Mbps with 802.11ac, while support for earlier 802.11a, 802.11b, and 802.11g modes helps the adapter work across several generations of WiFi equipment. This combination makes the AWUS036ACS suitable for users who need a straightforward way to add or replace wireless connectivity on supported systems.

Channel widths of 20, 40, and 80 MHz allow the adapter to operate with different WiFi channel configurations supported by the connected network. Security options include 64/128-bit WEP, WPA with TKIP and IEEE 802.1x, WPA2 with AES and IEEE 802.1x, and WPA Mixed, giving the device compatibility with multiple supported wireless protection methods. Power and WLAN LED indicators provide immediate visual feedback about the adapter’s operating state and wireless activity. Operating system support includes Windows 2000, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10, macOS 10.7–10.12, and Linux, enabling use across a broad range of supported desktop and laptop environments without limiting the product to a single software platform.

The AWUS036ACS uses one external detachable dual-band antenna rated at 2 dBi for both 2.4 GHz and 5 GHz operation. The antenna connects through an RP-SMA Female connector, so it can be removed when required and the connection point remains accessible for compatible antenna configurations. The product is specifically presented as a high-sensitivity dual-band adapter, and its external antenna arrangement gives users a practical way to position the radiating element independently of the computer’s built-in hardware. An included USB dock provides another placement option, allowing the adapter to be positioned away from the host USB port when the installation benefits from a different physical orientation.

Connectivity is provided through USB 2.0, keeping the adapter compatible with systems that support this interface. The compact body measures 5.5 × 1.0 × 2.5 cm, making it easy to integrate into a desktop setup without occupying much space around the computer. The AWUS036ACS is specified for operation from -10°C to 60°C and for storage humidity from 5% to 98% without condensation, defining the environmental limits within which the device is intended to be handled and used. The package includes the USB dock, while a USB cable is explicitly not included, which is important to consider when planning the installation. Together, the detachable antenna, compact housing, dock, and USB connection provide flexible placement options while keeping the hardware arrangement simple.