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I have had problems trying to use VM images on an Integral 512Gb external ssd with USB3. My new Dell Latitude E6230 has two USB3 ports. I was on VMPlayer 4.0.4 which works extremely well when the VM image is on the internal ssd drive, but slowed to a crawl when I I tried to use the external ssd attached to either of the USB3 ports. I mean suicidally slow. I got all excited when I read one of the other articles here:

VM Ware does not recognize USB devices

I immediately updated to VM Player 5.0.2 and waited expectantly. I first checked that I had the same high speed response with the same VM image copied to the internal ssd. However, I was extremely disappointed that the improvement on the external ssd (and a Lexar USB3 128Gb memory stick as well) was marginal at best.

Please can someone help me? While I can obviously use the internal ssd, its only got 256Gb so with all the other bloatware I have to use (Microsoft of course the main problem) there isn't that much space for all but a few smallish VM images.

I look forward to some assistance.

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What are the speed specifications for the USB3 device? I have no problem with performance problems on either USB3 external HDDs nor USB3 flash drives using the current version of VMWare – Ramhound Aug 27 '13 at 21:08
Thanks Ramhound - I'm a bit thick (a bit? a lot!) so not sure how to answer that. Where would I find that out? Interested to hear you have no problems - there is hope then! – Dave Stephens Aug 28 '13 at 10:17
Lets start with the advertised speeds. – Ramhound Aug 28 '13 at 10:48
OK, here we go. The Integral 512GB ssd has advertised Read up to 220MB/s and write up to 120MB/s. The Lexar 128GB Jump drive has 100MB/s and 55 MB/s. Hope this helps. – Dave Stephens Aug 28 '13 at 12:35
I assume you know the difference between USB 3.0 ports and USB 2.0 ports right? Have you tried a powered USb 3.0 hub? If you are trying this on battery power I suspect the device would have major problems writting at those advertised speeds. – Ramhound Aug 28 '13 at 13:26
  • In my experience some flash drives are very slow compared to external hard drives or SATA-to-USB attached SSDs. You might want to try using an actual hard drive (such as the one that was previously in your system if you still have it/upgraded it) or SSD connected to a USB 3.0 enclosure.

  • Make sure you don't have USB 2.0 compatibility enabled in the BIOS.

  • Make sure you have the proper chipset and USB 3.0 drivers installed. You may need to go to to obtain the right ones.

  • If you go the actual external hard drive/SSD route and still have issues with USB 3.0, use an eSATA enclosure instead.

share|improve this answer
Thanks ultra - I'll have a check and come back to you. A colleague did have a look on dell support and upgraded some drivers but I'll go back through the process. As Ramhound has no problems with his, it gives me hope. – Dave Stephens Aug 28 '13 at 10:19
I couldn't find anything about USB2.0 compatibility in the BIOS so assume its OK. I think I'm doomed to copying the VM images to the internal ssd when I need them. BTW what does 'a USB 3.0 enclosure' mean? I've tried to get the idiots guide on Google but no luck. Are you talking about a powered hub like Ramhound? – Dave Stephens Aug 28 '13 at 18:31
@DaveStephens - A eSATA & USB 2.0/3.0 enclosure turns a 2.5" or 3.5" internal drive into an external drive. You would connect the enclosure of an eSATA port. This would elminate the question about power and boost your speeds by ten fold. – Ramhound Aug 28 '13 at 19:09

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