USB3 is go

Snograt

Snograt

Snograt

Associate
Joined
18 May 2008
Posts
1,495
Location
Norf Lahndahn
PCPro said:
With work on the specification completed manufacturers can now start producing products based on USB 3, a process the group claims could take another two years: "It is anticipated that initial SuperSpeed USB discrete controllers will appear in the second half of 2009 and consumer products will appear in 2010."

All devices will be backward compatible with USB 2, though not the almost ten-year-old USB 1.

Microsoft says it is considering adding USB 3 support into Vista, though no decision has yet being made.
Click to expand...
Yay, my rig's even more out of date :D

Discussimate.
 
wikipedia said:
On September 18, 2007, Pat Gelsinger demonstrated USB 3.0 at the Intel Developer Forum. The USB 3.0 Promoter Group announced on November 17, 2008 that version 1.0 of the specification has been completed and is transitioned to the USB Implementers Forum (USB-IF), the managing body of USB specifications. This move effectively opens the spec to hardware developers for implementation in future products. The technology will provide a maximum bandwidth of 5.0 Gb/s (625 MB/s), and with the possibility for an optical interconnection.

USB 3.0 will remain backwards compatible with USB 2.0 as far as the Type A connector is concerned. While USB 2.0 is based on uni-directional data flow with negotiated directional bus transitions, USB 3.0 supports simultaneous bi-directional data flows through the use of dual-simplex four-wire differential signal wiring as compared to half-duplex two wire differential wiring in USB 2.0. Other interesting innovations in USB 3.0 include new power management features that support idle, sleep and suspend states. The two new differential pairs make the cable about as thick as an Ethernet cable and provide full-duplex transfers.

According to electronicdesign.com cables will be limited to 3 m at full speed. The technology is similar to PCI Express 2.0 (5-Gbit/s). It uses 8B10B encoding, linear feedback shift register (LFSR) scrambling for data, spread spectrum. It forces receivers to use low frequency periodic signaling (LFPS), dynamic equalization, and training sequences to ensure fast signal locking.

USB 3.0, which will be called USB SuperSpeed in commercial devices, is expected to be available in commercial controllers in the second half of 2009. Consumer products are expected to become available in 2010.
Click to expand...
High speed common interconnects are no bad thing :]
 
looking forward to usb3 and usb3 icyboxes

esata is great, but not as portable as usb (less pc's have it)
 
Not that impressed - don't think I have ever seen anything like the 'upto 480Mbit transfer speed' from usb2.
however, if they can achieve the stated rates then Im upgrading straight away :p
 
So only a matter of time before we get the "hi-speed" USB3 sticks that read at 10MB/s then?:p

edgedemon said:
Not that impressed - don't think I have ever seen anything like the 'upto 480Mbit transfer speed' from usb2.
however, if they can achieve the stated rates then Im upgrading straight away :p
Click to expand...

My USB stick reads at around 25MB/s (real world) which is close to the real world max if i'm not mistaken.

The question is how fast will memory be in a couple of years time as it's still that that is holding up read/write speeds. A USB 3 HDD would be a good thing though.
 
Amp34 said:
So only a matter of time before we get the "hi-speed" USB3 sticks that read at 10MB/s then?:p



My USB stick reads at around 25MB/s (real world) which is close to the real world max if i'm not mistaken.
Click to expand...

you are mistaken, i got full speed out of my 1tb drive over usb2.0 :) we have a long way to go yet.
 
480Mbps is marketing speak anyway, because of the 8/10 encoding is uses the actual data rate is 400Mbps (minus protocol overheads). 40-45MBps is about as much as you'll be able to get out of it in practice.
 
You must log in or register to reply here.
Back
Top Bottom