So my specs are kickin' with the 128GB SSD, 4GB RAM, Core i7-620M all packed into the x201 notebook. So here I am trying to transfer just under 10GB of data from a USB flash drive to the SSD. Logically my expectations are high because there are no moving parts. Of course many of us know that USB 2.0 has a theoretical maximum transfer speed of 480 Mbits/s which in turn equates to 60 MB/s. I'm aware that there are bottlenecks in the system (the chipset, even the flash drive itself). However 20MB/ second still seems pretty slow. Any thoughts? When I got the laptop, I performed a fresh install and have installed very few programs on it (not even antivirus!), so I highly doubt it's due to software constraints. The USB drive I'm using is the 16GB DiskGO Edge.
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From my experience the bottleneck would be your flash drive. 20MB/sec is not bad at all imho.
It also it depends on what kind of data you're transferring, a lot of small files or just a few big files... the latter will be faster. -
Practical maximum speed of USB 2.0 is near 30 MB/s.
But your flash drive tech spec (from link):
Read : 15MB/s
Write Speed: 8MB/s
Most of cheap flash drive is very clumpsy in speed matters. Today not so many truly hi-speed flash drives and they pricey.
For more speed you need external hdd, flash drive with highest speed. Also read about esata, usb 3.0. -
Have you tried enabling your write caching?
To enable write caching, right click one of your drive letters, select Properties, select the Hardware tab, select your external USB drive, select the Properties tab, and ensure the Optimize for performance is selected.
Not sure how much of a difference this would help though. -
Thank you both. That's exactly what I was looking for. I was pretty sure it was on the flash drives end, but wasn't positive. Don't even remind me of USB 3.0. I'm upset that I just got this laptop ~4-5 months ago and 3.0 decides to come out now. Ugh. I'd look into replacing the USB ports on the lappy, but that's pointless without changing the chipset as well, and I am clueless as to what that would even require (without replacing the whole motherboard). Lol.... Thanx again guys!
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You could try get an expresscard for usb 3.0 or eSATA.
Why are my transfers so slow? USB to SSD
Discussion in 'Lenovo' started by Sandlotje, Dec 2, 2010.