&gt; Even AWS limits how fast you can upload to S3...<p>I&#x27;m on gigabit fiber and use S3 to backup hundreds of gigs per month to S3. I&#x27;ve never seen them limit upload speeds, it is clearly saturating the connection for the entire duration of my upload. I would expect that because I am paying for the storage, they would be happy to let me write data to their machines as fast as I like. Is there a citation you can provide from their docs that supports your statement? Genuinely curious, because my experience has been different.<p>To the point that some of these sync or backup providers limit bandwidth, I have definitely experienced that. Tested SpiderOak and Dropbox and upload speed was horrid. Dropbox in particular was disappointing because they can&#x27;t even claim to have the extra encryption overhead SpiderOak does, it was just shit speed every day. I&#x27;m paying a premium for gigabit fiber to the home and you really can tell who over-promises and under-delivers quickly. Fortunately my &#x27;roll your own&#x27; backup + sync works well and is price competitive so I&#x27;ll stick with that.