also this comes with a usb 3.0 cord i accedently bought an extra. on my dell inspiron 1545 laptop through the expresscard32 slot im getting on average about 40MB/s transfer speed to the wd hdd that i took out of my wd mybook 1tb usb2.0 i think for the best performance we should buy harddrives with large buffers like 64mb or similar, sadly sata 3.0gb/s is slower than what usb 3.0 says its throughput is, therefor until someone starts creating new harddrives with a faster interface we will not see the true potential of usb3.0 this product coupled with my 3.0 reader overall has given me a fair 2X speed increase for all write transfers my main use is to copy folders of videos back and forward from hdd's 5 to 20 gb in size with 20 or 30 files it seems that the transfers are the fastest on singular large files overall for me, this even with a now obsolete harddrive to use with the system is still a massive performance improvement. sadly now we have to wait for other tech to catch up and implement 3.0 (my xbox and ps2 for instance, and of course new harddrives)
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