Wireless-G USB Adapter with Detachable 4 DBI High-Gain Antenna Standards: IEEE 802.11b, IEEE 802.11g, 2.4 GHz Interface: Hi-Speed USB 2.0 Chipset: Ralink RT2571 (RT73) Frequency band: 2.4000  2.4835 GHz (Industrial Scientific Medical Band) Modulation: OFDM with BPSK, QPSK, 16QAM, 64QAM (11g) BPSK, QPSK, CCK (11b)