The PC is an XP box, USB2 only. I added an
I now wonder about how much certainty there is in identifying some of these commodity products. I have a USB3 Ethernet/3 port hub sold by HooToo ( like the name and company is local). But HooToo did not make it and they refer you to off shore company for driver updates. Monoprice seems to have an identical item. Tough to know what you are buying. I suspect the same is true of cables. Some of the old line US and European manufacturers now source some products in China, and maybe they do a good job in quality control.
I see this is covered here and there in part, but let me put the question somewhat differently
I have an ASI290mm, which works well with the supplied cable and with an after market 3m cable, at least for DSOs (low frame rates). At low framerates either a USB2 or USB3 port on the PC works.
What does not work are hubs, unpowered or unpowered, USB2 or USB3. I've read the speculation as to why this might be the case, for example the challenge of pico-second timing in long runs. At least one other USB3 camera maker advises against using hubs or active extenders. Optical and other extender technologies are expensive and not certain to work either.
The USB3 standards group suggests that active cables should work and does not warn against hubs. A sample of posts in computer forums suggests that it is a problem some devices and some cables at some transfer speeds, but not necessarily an unavoidable USB3 problem. The implication I draw is that this is a manufacturing design or quality issue, and not a universal flaw in the USB3 standard.
For practical reasons I need to run cable longer than the supplied cable or the 3m passive cable. Ideally I would like to have cable runs as long as 30m, something easily done with USB2 and active cables (and relatively low bandwidth needs).
Has anyone found an active USB3 cable or hub that does work with a ZWO USB 3 camera?
