USB 3 Makes External USB RAID ''Possible''

Computerworld is reporting that Symwave, one of the first companies to design silicon for USB 3.0, is claiming that its new USB 3.0 SOC (system on a chip) can be used with external storage devices and provide transfer data rates up to 500 Mbit/sec.  USB 3.0 is actually designed to handle transfers of up to 5 Gbit/sec, a huge increase in throughput when compared to the 480 Mbit/sec limit seen with USB 2.0. As an example, a 25 GB HD movie would take 13.9 minutes to transport over a USB 2.0 connection, just 70 seconds over a USB 3.0 connection.

"You're pretty much communicating through a straw," said Gideon Intrater, Symwave's vice president of solutions architecture, referring to the 2.0 limitations. "USB 2 was good as long as you had 100GB on your hard drive, but now it's just way too slow."

Symwave's new SOC, developed for external storage devices including HDDs and SSDs, supposedly offers performance beyond the top speed of SATA. According to Intrater, the chip will allow speeds as high as 500 Mbit/sec because it supports RAID 0 configurations. System builders can take advantage of this feature by installing two external drives that can be addressed at the same time, offering faster data reads. In another scenario, the second drive could mirror the first USB drive.

Intrator also said that USB 3.0 can carry as much as 900 milliamps, making it easier to power a portable RAID array of two drives; USB 2.0 currently only provides 500 milliamps.

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  • Hanin33
    jeraldjunkmailonly 900mAmp? Woulda been nice if they could put some SERIOUS power on that line? 5 amp line anyone?


    5amps... are you serious? wot do you intend on powering? a blender?
    10
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  • jeraldjunkmail
    only 900mAmp? Woulda been nice if they could put some SERIOUS power on that line? 5 amp line anyone?
    -15
  • Kaiser_25
    "provide transfer data rates up to 500 Mbit/sec. USB 3.0 is actually designed to handle transfers of up to 5 Gbit/sec"
    Im tired of them kinda mis labling, mbit is bits not bytes, so its like not that amazingly fast. They need to make Mbytes/sec the standard (for now) some people will read this and see 500 mb...and assume the wrong thing...BUT usb 3.0 does look badass and it is about time for it.
    9
  • duckmanx88
    kaiser_25 They need to make Mbytes/sec the standard (for now) some people will read this and see 500 mb...and assume the wrong thing...BUT usb 3.0 does look badass and it is about time for it.


    agreed. isp's do the same thing. its like who the eff uses those standards. my 6mbit connection is just 600KB/sec so just call it that!!
    1