[lug] USB3 vs eSATA III question

Davide Del Vento davide.del.vento at gmail.com
Sun Jul 22 12:39:13 MDT 2018

I don't know anything about your question, but I'm seeing the most
recent/performant (SSD) drives are using PCIe instead of anything
else. I've also heard that booting linux from PCIe can be troublesome,
so I think I'll buy a normal SATA drive (I'm in the market for a small

On Sun, Jul 22, 2018 at 12:27 PM, Bear Giles <bgiles at coyotesong.com> wrote:
> This is mostly from curiousity...
> USB 3 has a claimed bandwidth of 3 Gbps.
> eSATA II has a claimed bandwidth of 3 Gbps, and eSATA III has a claimed
> benefit of 6 Gbps.
> I don't think any USB stick is going to be pushing 3 Gbps (but I'm not 100%
> certain), but perhaps an external hard drive, esp. an external SSD. But is
> that actually realistic?
> In contrast my experience with eSATA is that it really is akin a
> traditionally installed disk.
> Like I said this is mostly from curiosity. I noticed my recent systems
> haven't had eSATA ports but it's easy to add a half-height card for one.
> Ditto external drives - they usually only have USB 3 but if you buy an
> external drive case for your own drive then it's easy to find them with both
> USB 3 and eSATA. So I have my eSATA gear but it might not be necessary any
> longer if the quoted USB 3 numbers are accurate.
> Does anyone else have experience with both USB 3 and eSATA?
> (Meanwhile I'm wondering what to do with a few old external drives that are
> USB 2. They're so much slower and smaller than my external USB 3 drives.)
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