0
votes
1answer
68 views

Why are USB connectors different from RJ45/Ethernet connectors?

I note that USB cable and Ethernet cable (RJ45/Cat5/...) have the same function : to transmit data as fast as possible over a wire or a port that we can connect and disconnect. In their evolution they ...
3
votes
1answer
155 views

How to estimate download/enumeration times in large USB trees?

I'm doing a system design in which many flash-memory devices are connected into a USB tree of hubs, and I need to estimate how long it will take for them all to do a download ... which is complicated ...
1
vote
4answers
2k views

Very slow usb 3.0 performance

I have a WD Passport 1tb drive, and a 3tb Seagate 3tb GoFlex drive; both are external, both are usb 3.0, and both are slow as molasses: the most I can get out of them is 30MBs. I've tried copying ...