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USB 3.2 specification Announced Goes 2 GB/s
The USB 3.0 Promoter Group announced another USB-C specification: USB 3.2. It will support “multi-lane operation”. Put simply: it’s faster than regular USB 3.0, allowing up to two lanes of 5Gbps or two lanes of 10Gbps operation.
The USB 3.0 Promoter Group today announced the pending release of the USB 3.2 specification, an incremental update that defines multi-lane operation for new USB 3.2 hosts and devices. USB Developer Days 2017 will include detailed technical training covering USB 3.2, fast charging advancements in USB Power Delivery, and other exciting topics.
While USB hosts and devices were originally designed as single-lane solutions, USB Type-C cables were designed to support multi-lane operation to ensure a path for scalable performance. New USB 3.2 hosts and devices can now be designed as multi-lane solutions, allowing for up to two lanes of 5 Gbps or two lanes of 10 Gbps operation. This enables platform developers to continue advancing USB products to fit their customers' needs by effectively doubling the performance across existing cables. For example, a USB 3.2 host connected to a USB 3.2 storage device will now be capable of realizing over 2 GB/s data transfer performance over an existing USB Type-C cable that is certified for SuperSpeed USB 10 Gbps.
"When we introduced USB Type-C to the market, we intended to assure that USB Type-C cables and connectors certified for SuperSpeed USB or SuperSpeed USB 10 Gbps would, as produced, support higher performance USB as newer generations of USB 3.0 were developed," said Brad Saunders, USB 3.0 Promoter Group Chairman. "The USB 3.2 update delivers the next level of performance."
"With increased performance and seamless compatibility, the new USB 3.2 specification brings even more speed and bandwidth benefits to new USB 3.2 devices, while remaining compatible with USB 3.0 and earlier devices," said Roanne Sones, General Manager, Strategy and Ecosystem for Windows and Devices, Microsoft. "We're excited to work with our partners in the USB 3.0 Promoter Group to help showcase these benefits to users around the world."
Key characteristics of the USB 3.2 solution include:
- Two-lane operation using existing USB Type-C cables
- Continued use of existing SuperSpeed USB physical layer data rates and encoding techniques
- Minor update to hub specification to address increased performance and assure seamless transitions between single and two-lane operation
For users to obtain the full benefit of this performance increase, a new USB 3.2 host must be used with a new USB 3.2 device and the appropriate certified USB Type-C cable. This update is part of the USB performance roadmap and is specifically targeted to developers at this time. Branding and marketing guidelines will be established after the final specification is published. The USB 3.2 specification is now in a final draft review phase with a planned formal release in time for the USB Developer Days North America event in September 2017.
tsunami231
Senior Member
Posts: 13566
Joined: 2003-05-24
Senior Member
Posts: 13566
Joined: 2003-05-24
#5455810 Posted on: 07/26/2017 06:42 PM
because it was needed?!
because it was needed?!
Aura89
Senior Member
Posts: 8399
Joined: 2008-07-31
Senior Member
Posts: 8399
Joined: 2008-07-31
#5456093 Posted on: 07/27/2017 02:06 PM
I think, though i could be wrong, that USB is trying to become the "end all" device.
By that i mean:
Keyboard/mouse/usb drive/etc.? Already USB, but:
Video cable? Why not USB (if bandwidth keeps evolving)
3.5mm connection? Why not USB.
5.1/7.1 speakers? Why not USB.
Microphone? Why not USB.
Power connections for devices (such as monitors even?)? Why not USB?
I'm not saying i necessarily agree with all of this, but it does seem to be the way USB is going, many of those items already have USB versions of them, but they aren't controlling 100% of the market. But imagine a world where the only ports on your PC were USB, and that's the world i think USB wants.
It would be kinda cool if a USB cable could send a GOOD video signal to my monitor and power it at the same time....lol
Much like PCIe, USB seems to be evolving faster than anyone is demanding. There's hardly anything out there that take advantage of USB 3.1 (gen2). I don't really understand why the specs keep getting pushed, because all this does is alienate lower-end devices that may not be able to keep up (like ARM devices, for example). It's nice that they're all backward compatible, but I would MUCH rather them focus on efficiency.
I think, though i could be wrong, that USB is trying to become the "end all" device.
By that i mean:
Keyboard/mouse/usb drive/etc.? Already USB, but:
Video cable? Why not USB (if bandwidth keeps evolving)
3.5mm connection? Why not USB.
5.1/7.1 speakers? Why not USB.
Microphone? Why not USB.
Power connections for devices (such as monitors even?)? Why not USB?
I'm not saying i necessarily agree with all of this, but it does seem to be the way USB is going, many of those items already have USB versions of them, but they aren't controlling 100% of the market. But imagine a world where the only ports on your PC were USB, and that's the world i think USB wants.
It would be kinda cool if a USB cable could send a GOOD video signal to my monitor and power it at the same time....lol
Loophole35
Senior Member
Posts: 9797
Joined: 2011-09-21
Senior Member
Posts: 9797
Joined: 2011-09-21
#5456097 Posted on: 07/27/2017 02:13 PM
I think, though i could be wrong, that USB is trying to become the "end all" device.
By that i mean:
Keyboard/mouse/usb drive/etc.? Already USB, but:
Video cable? Why not USB (if bandwidth keeps evolving)
3.5mm connection? Why not USB.
5.1/7.1 speakers? Why not USB.
Microphone? Why not USB.
Power connections for devices (such as monitors even?)? Why not USB?
I'm not saying i necessarily agree with all of this, but it does seem to be the way USB is going, many of those items already have USB versions of them, but they aren't controlling 100% of the market. But imagine a world where the only ports on your PC were USB, and that's the world i think USB wants.
It would be kinda cool if a USB cable could send a GOOD video signal to my monitor and power it at the same time....lol
USB is limited to 5V currently, no? I'm not sure you could operate monitors on that voltage. However the rest of your statement I'm all for. A unified port that can do everything sounds great. Though it has a way to go to match DP and HDMI on bandwidth.
I think, though i could be wrong, that USB is trying to become the "end all" device.
By that i mean:
Keyboard/mouse/usb drive/etc.? Already USB, but:
Video cable? Why not USB (if bandwidth keeps evolving)
3.5mm connection? Why not USB.
5.1/7.1 speakers? Why not USB.
Microphone? Why not USB.
Power connections for devices (such as monitors even?)? Why not USB?
I'm not saying i necessarily agree with all of this, but it does seem to be the way USB is going, many of those items already have USB versions of them, but they aren't controlling 100% of the market. But imagine a world where the only ports on your PC were USB, and that's the world i think USB wants.
It would be kinda cool if a USB cable could send a GOOD video signal to my monitor and power it at the same time....lol
USB is limited to 5V currently, no? I'm not sure you could operate monitors on that voltage. However the rest of your statement I'm all for. A unified port that can do everything sounds great. Though it has a way to go to match DP and HDMI on bandwidth.
Aura89
Senior Member
Posts: 8399
Joined: 2008-07-31
Senior Member
Posts: 8399
Joined: 2008-07-31
#5456101 Posted on: 07/27/2017 02:18 PM
Currently it's 5 volts, i believe, but i wouldn't be surprised if they try and change that at some point.
However, there are currently monitors that do what i suggest:
https://www.newegg.com/Product/Product.aspx?Item=N82E16824236598&cm-re=usb-powered-monitor---24-236-598---Product
Just, you know, no monitors we generally would want for a desktop...lol
Technically, i believe USB has a 20v max, but that's for power delivery devices.
USB is limited to 5V currently, no? I'm not sure you could operate monitors on that voltage. However the rest of your statement I'm all for. A unified port that can do everything sounds great. Though it has a way to go to match DP and HDMI on bandwidth.
Currently it's 5 volts, i believe, but i wouldn't be surprised if they try and change that at some point.
However, there are currently monitors that do what i suggest:
https://www.newegg.com/Product/Product.aspx?Item=N82E16824236598&cm-re=usb-powered-monitor---24-236-598---Product
Just, you know, no monitors we generally would want for a desktop...lol
Technically, i believe USB has a 20v max, but that's for power delivery devices.
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usb just became more awesome then awesome. wish mini-usb would die though.