Here is the solution to check your internet connection's bandwidth usage.
BitMeter 2 is a bandwidth meter, it allows you to visually monitor your Internet connection by displaying a scrolling graph that shows your upload and download speed over time.
Features include: Graphical and numerical displays of historical data, Web interface, alerts, stopwatch, calculator, transparent/float/click-through modes, 36-page help file, audio notifications, configurable color-schemes and many other options. Version 3.5.7 offers minor fixes and feature enhancements.
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