The ALFA AWUS036ACH AC1200 WiFi 5 USB Adapter is a high-performance dual-band wireless adapter for desktop PCs with exceptional range and signal strength.• Dual-band WiFi 5 (802.11ac): up to 867 Mbps on 5 GHz, 300 Mbps on 2.4 GHz• Long-range antennas: Two 5 dBi high-gain detachable antennas (RP-SMA connectors)• USB Type-C connection with USB 2.0 backward compatibility• Security: WEP, WPA, WPA2, WPA3 support• Compatibility: Windows Vista-11, Linux kernel 4.19+, macOS up to 10.15 (no M1/M2 support)