Some providers are testing and offering 10 Gbit/s shared servers, while others are developing other systems that will allow users to scale their needs on the fly.
Once the seedbox has a full copy of the files, they can be downloaded at high speeds to a user's personal computer via the HTTP, FTP, SFTP, or rsync protocols.
Seedboxes on high-speed networks are typically able to download large files within very quickly, provided that the swarm can actually handle such a high upload bandwidth.
For example, a seedbox with a transfer rate of 300 Mbit/s can finish downloading a 1 GB file in under half a minute.
Because of the mentioned high speeds, seedboxes tend to be popular when using private torrent trackers, where maintaining a share ratio above 1 can be very important.