It displays and counts network traffic.

Traffic Counter is an easy-to-use tool to display and
count network traffic of your computer. If you have limited monthly Internet traffic and always run P2P software such as BitTorrent, you may be in risk to be fined by your ISP because of your huge traffic consuming. Traffic Counter reports daily and monthly traffic. It allows you to set monthly traffic limit, alerts you when the amount of the traffic is used.
It displays current download rate and upload rate also.