uTorrent

 
The features which are present in other BitTorrent clients are here in µTorrent, including scheduling, bandwidth prioritization, RSS auto-downloading and compatibility with BitComet-Mainline DHT. µTorrent also supports peer exchange and the Protocol Encryption joint specification (compatible with Vuze / Azureus 2.4.0.0 and above and BitComet 0.63 and above).

Unlike many other torrent clients available, µTorrent does not eat away at valuable system resources; in fact, the program typically runs on approx. 6MB of memory. µTorrent is contained within a single executable file, smaller than 1 MB.