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USB 3.0 speed: real and imagined |
June 26, 2014
This story has been updated.When Don Stovicek set out to buy a fast USB 3.0 flash drive, he discovered that the advertised speeds fell well below even USB 2.0’s official capabilities.The now-aging USB 2.0 standard can theoretically transfer data at a very high 480 megabits per second (mbps), or 60 megabytes per second (MBps). That’s impressive, but not as much as the newer USB 3.0, which can handle up to 5gbps (640MBps)—over ten times as fast as the 2.0 maximum.Why is it that the current crop of USB 3.0 flash drives don't deliver full USB 3.0 speed? Most of them max out—according to manufacturer specifications—at 100MBps (800mbps) or less. In a casual search, I only found one, the Mushkin Enhanced Ventura Plus, that advertised a read speed of 200MBps (1.6gbps). That’s still less than half USB 3.0's maximum.To read this article in full or to leave a comment, please click here
Link: http://www.pcworld.com/article/2360306/usb-3-0-speed-real-and-imagined.html#tk.rss_howto
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