Wireless G supports a maximum theoretical transfer rate of 54mbps. Like Wireless B, it operates at the unregulated 2.4GHz frequency range. So it has the same interference issues that Wireless B has. Wireless G is backward compatible with Wireless B devices. Odds are that you don’t have a device that only supports Wireless B, but if you do then this is a benefit. As you can see, the main benefit of a Wireless G router over a Wireless B router is speed.