One of the cheapest seedbox provider which is equally reliable is CUtorrents , CU Torrents have been in business for quite some time and right now they are expanding their business, if yo are really planning to increase your ratio in private trackers 500 GB hdd is a definite requirement with small HDD space your chances of making a decent ratio in these private trackers is pretty slim .

Please check the below Top cheap Seedbox plans

Seedbox Hosting Speed Space Bandwidth Limitations Cost Special
CUTorrent Cheap Seedbox 100 Mbps 500GB Unmetered Only private trackers 14$ Promanager Extreme
Fusion VPS Cheap Seedbox 250mbps 333GB Unmetered No Limit 17$ VPS Seedbox
Ajseedbox  Cheap Seedbox 1Gbps 200GB Unmetered No Limit 15$ 1gbps from 6 Euro
Dedi Seedbox  Cheap Seedbox 1Gbps 200GB Unmetered No Limit 20$ 1gbs cheap
Pulsemedia Cheap Seedbox 100mbps 750 GB Unmetered No limit 17$ cost/GB very low
Santrex Cheap Seedbox 1Gbps 200 GB Unmetered 40 Active torrents 20$ Netherlands
Seedboxsolutions Cheap Seedbox 1Gbps/200Mbit 300 GB Unmetered Bandwidth cap 20$ 200mbit After capped
Ultraseedbox Cheap Seedbox 1GBPS 450GB Unmetered No limit 32$ Multiple Offshore
Seedstuff Cheap Seedbox 100Mbps 60GB Unmetered No limit 10$ Cheap starter
ROSE hosting VPS 100Mbps 30 Unmetered 4 TB 20$ Custom VPS

Here you can see that for 14 $ a month you are getting 500 GB hdd unmetered traffic 100 mbps line , I think this is the best deal around.also they have SSl access and file transfers through FTP, so transferring files and uploading files into the servers is equally easy.

 

Now compare it with the cheap seed-boxes which are like 3-4 $ bust the amount of space they provide is so negligible that it will take you eons to make a decent ratio also mostly they have capped bandwidth and unless you are planning to use a seedbox only to have fun its pretty pointless getting a seedbox with a 5-20 gb hdd.