Adjustable cable enhances receptionGet more flexibility when placing the USB-AC58 adapter with the bundled USB extension cable. Greater freedom of placement means better reception, as it allows you to fine-tune positioning for the best signal available.External high-gain antenna supports up to 10X* signal coverage.With the detachable high-gain antenna you get the option to greatly increase your signal coverage up to 10X* more extensive than Wireless-g adapters. Detachable design means you can connect and disconnect antennas at will, and even upgrade them in future if needed.*Verified by ASUS internal test. Actual performance may vary as a result of network conditions and environmental factors.