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View Full Version : USB-III set to offer 5Gb/sec speeds...



Qdos
02-09-2009, 14:05
The emerging standard for next generation USB-3 devices could mean that the latest hardware will be on the shelves by the end of this year.

Quite how USB-3 will pump 5Gb/sec through devices like mechanical hard drives remains to be seen of course, with todays present consumer speed maxing out at 3Gb/sec courtesy of SATA-2 standards.

Of course all speeds are theoretical maximums, however it sounds like USB-3 will be changing the face of your plugin devices very soon (on condition you buy a USB-3 capable PC or motherboard).

USB overseer ready to certify SuperSpeed kit • Register Hardware (http://www.reghardware.co.uk/2009/09/02/superspeed_certification/)



The USB Implementers Forum - the body behind the bus standard - has said it will now start testing devices to ensure they comply with the USB 3.0 - aka SuperSpeed USB - standard.

Compliance means manufacturers are allowed to stamp their offering with the SuperSpeed logo.

The USB IF founded its SuperSpeed USB Platform Interoperability Lab in March. The organisation said suppliers have already begun using the facility for preliminary product testing. Now they will be able to follow those tests with a final certification run.

SuperSpeed uses new ports to deliver a bandwidth of up to 5Gb/s - ten times that of USB 2.0. But they're designed to be backwards compatible with full-size USB 1.1 and 2.0 ports.

FatAndy
02-09-2009, 14:15
Hi mate,
3 Gb/s mentioned for SATA -- it's only interface speed. Raw read rate from platters for 7200 rpm drive now is around 1.6-1.9 Gb/s.
And there are contact pins reingeneered - host part seems to be compatible, but device part (mini USb and micro USB) - no...

Qdos
02-09-2009, 14:21
That's why I said above... "all speeds are theoretical maximums..." ;)

SSD's could approach 5Gb/s, not through USB, but by interfacing them to a memory slot instead of an HDD type interface... :)

FatAndy
02-09-2009, 14:44
Not sure about memory slot... I've seen some ExpressCard interface SSD testing reports but wasn't too impressed.

Qdos
02-09-2009, 14:49
Some renegade with a netbook mentioned a hashed up interface they'd made with a single cell Samsung SSD right onto the system bus through a DIMM slot which they reckoned returned fantastically increased speeds - although personally I won't take my experiments that far... :p

FatAndy
02-09-2009, 15:07
The same. One of colleagues usually asks his employees when they require new HW - "do you still work faster than HDD (CPU, memory etc.)?" And it's right at most of cases ;)