External HDD slow USB 3.0 transfer rate

Ramsnet

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USB 3.0 supposed to be 5gb/s transfer rate, that's 600mB/s. I'm making a backup of my files in this drive and I'm only getting about 100mB/s transfer speed.
 

Alec Mowat

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What's the write speed of the HD? You may be looking at the wrong bottleneck.
What's the read speed of your drive?
 

Ramsnet

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I'm using Seagate Expansion Portable Drive. Both ports are USB 3.0, it didn't say the specs on the box nor the guide.
 

Alec Mowat

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100MB is pretty quick.

The short answer is that is decent HD performance for a consumer HDD. You would need a faster drive for faster performance, the USB 3.0 port isn't being bottlenecked. Most SSD's don't even run at 600 MB/s, http://ssd.userbenchmark.com/

If you want better performance, you would be better to get a multi-disk NAS device and copy through the network.
 

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