These are my recommended seedbox providers with unlimited bandwidth:
- RapidSeedbox — offers “one-click” installs of Deluge, qBitTorrent, ruTorrent, and Transmission — you get root access on your machine. Accepts Bitcoin, 14-day refund policy. €15 euro ($15 USD) month-to-month. More details.
Other Seedboxes That Allow Unlimited Bandwidths
These are other seedbox providers with unlimited bandwidth:
- SeedHost.eu — allows public trackers, Plex, and apps for automation. 3.9TB – 1gbps – 8TB bandwidth – €12 
- WhatBox — has automation apps but only allows a handful of one-click install apps. Whatbox has a good wiki on installing most apps through SSH. Starts at $10/month. They offer unlimited bandwidth and traffic on all plans. 
- UltraSeedbox — download unmetered, supports plex and automation tools. Public torrents are supported but only allowed to upload to a ratio of 2. 4TB – 20gbps – 8TB bandwidth – €15 
- Seedboxes.cc – Starts at €6/month. They offer unlimited bandwidth and traffic on all plans. 
- Feral Hosting – Starts at £6/month. They offer unlimited bandwidth and traffic on all plans. 
What is a Seedbox?
A seedbox is a high-speed server for downloading and uploading files. Typically a seedbox is used to make fast transfers using torrents or Usenet.
On a seedbox, you will see download speeds from 100Mbps (8 MB/s) to 10Gbps (1250 MB/s). However, if you are in North America using a Seedbox in Europe, you’ll probably get a maximum of 24 MB/s on a single connection. You may also consider opening multiple connections.
Using A Seedbox
Generally, seedboxes are already set so the you can easily install Usenet and torrent applications.
When the files are downloaded to the seedbox, they can then be downloaded to your computer using various protocols. You can also directly stream the media from the seedbox with an application like Plex.