EUB-8301 is a USB 2.0 pen-size wireless adapter supporting dual-band 802.11a/b/g (2.4GHz & 5GHz) radio operation. It provides high-speed wireless connection with data rate up to 54Mbps. NUB-8301 is based on the 802.11g standard backwards compatible with 802.11b products.
This means that you do not need to change your entire network to maintain connectivity.
You may sacrifice some of 802.11g speed when you mix 802.11b and 802.11g devices, but you will not lose the ability to communicate when you incorporate the 802.11g standard into your 802.11b network.
You may choose to slowly change your network by gradually replacing the 802.11b devices with 802.11g devices.
For more security application, NUB-8301 can support 802.1x, WPA and WPA2.