Timeline for Using USB 3.0 to speed up transfer between USB 2.0 devices?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Jul 13, 2018 at 12:39 | comment | added | Kozuch | I have a Lenovo E50-80 (model 80J2) - it features 2 USB 3.0 ports. I can use 2 1080p USB 2.0 webcams on these ports simultaneously even though each webcam draws about 15 megabytes/s alone and they will not work together when connected via a USB 2.0 hub. This means the USB 3.0 must do transaction translation from high-speed to super-speed. Surely such a transaction translation may not be a part of USB3.0 specs but in reality there seem to be devices that do perform this (VL670 for example). I monitored the data traffic with usbtop utility. Anyone has similar experience? | |
| May 24, 2011 at 18:41 | comment | added | Martin | Nice find! Section 3.1 explains it quite well. I didn't know that USB 3.0 implements a dual bus, with USB 2.0 pretty much completely separated. | |
| May 24, 2011 at 18:38 | vote | accept | Martin | ||
| May 23, 2011 at 21:26 | history | edited | camster342 | CC BY-SA 3.0 |
Clarified where USB3's extra capacity/bandwidth is implemented
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| May 22, 2011 at 22:35 | history | edited | camster342 | CC BY-SA 3.0 |
Added paragraph about ports and host controllers.
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| May 22, 2011 at 22:25 | history | answered | camster342 | CC BY-SA 3.0 |