The 802.11g standard is older Wi-Fi technology, so these routers are usually inexpensive. An 802.11g router is ideal for homes where the fastest speeds are not important.
An 802.11g router operates on the 2.4 GHz band and supports a maximum bit rate of 54 Mb/s, but usually has about a 22 Mb/s average throughput. These speeds are just fine for basic internet browsing and standard-definition media streaming.
This standard is fully compatible with the older 802.11b hardware, but because of this legacy support, the throughput is reduced by about 20 percent when compared to 802.11a