Very slow Samsung 840 pro speed

[raniel]

Hi

Just bought a new Samsung 840 Pro 256GB and put it in a USB 2.0 enclosure, I only got 35-40 MB/s read & write...

yeah I know usb 2 speeds are very slow, but not this slow.


Please help me
Thanks

 

[Synaesthesia242]

Yes USB 2 is that slow. Try USB 3 or SATA

 

[raniel]

Yes USB 2 is that slow. Try USB 3 or SATA

Nope. I think usb 2 can exceed 100MB/s easily.

 

[ljx718]

Nope. I think usb 2 can exceed 100MB/s easily.

yes, it is that slow. Just get a usb 3 enclosure

 

[raniel]

Ok thank you guys. I'll do some tests again

 

[Bear]

Nope. I think usb 2 can exceed 100MB/s easily.

No it can't USB 2.0 is 480Mbits/sec and once you take in to account USB protocol overhead, 40MB/s is decent.

USB3.0 is the way to go if your computer can support it.

 

[Livewings]

Hi

Just bought a new Samsung 840 Pro 256GB and put it in a USB 2.0 enclosure, I only got 35-40 MB/s read & write...

yeah I know usb 2 speeds are very slow, but not this slow.


Please help me
Thanks

You bought one of the best SSDs around and you put it in a $2 enclosure? 🙄

 

[dusk007]

It is a bit weird to run an SSD in a USB 2.0 enclosure.
I never get beyond 35MB on mine and if I attach it on the hub instead of directly at a port it isn't even that. Only 25-30.
40MB/s is an incredible speed for USB 2.0 and about the best you can possibly expect. I would be proud of those controllers on both ends.

 

[BuCkDoG]

I agree with everyone else. Run it on USB 3 or SATA. USB 2 isn't where you want to be with an awesome SSD like that one.

 

[raniel]

You bought one of the best SSDs around and you put it in a $2 enclosure? 🙄

Sorry I didn't mention that I only used USB 2 enclosure to install Mountain Lion before I replace the HDD inside my mac. I have no intentions using a fast SSD on a crappy USB 2 enclosure.


Thank you for your input guys. Sorry I blamed my ssd where definitely there is nothing wrong with it.