Now I'm using Dropbox with 1TB plan which costs me 100$/year.

But I need 3TB and without any smart synchronization and stuff - so I can just upload my archives and download them back when I need.

It's very important that I actually can delete the files (which I uploaded) from my HDD and they should still be available for download. So this should not be like synchronization but just a storage.

It should also have a good upload speed, at least 16mbps (I have 100mbps connection from Ukraine).

Are there any good services/cloud platforms where I can keep my archives cheaper than for $300/year?