I installed ubuntu server 14.04 on a new server machine. I was planning to get an external usb hard disk for data backup purposes. My motherboard is intel s1200V3RPS which shows on intel page usb 3.0 with 4 ports.
However, I have 6 ports on my machine and when i do
lsusb on it I get the following output
naveen@ubserver:~/ordcode$ lsusb Bus 002 Device 002: ID 8087:8000 Intel Corp. Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:8008 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 058: ID 413c:9013 Dell Computer Corp. Bus 003 Device 004: ID 046b:ff10 American Megatrends, Inc. Virtual Keyboard and Mouse Bus 003 Device 031: ID 046d:c05a Logitech, Inc. M90/M100 Optical Mouse Bus 003 Device 002: ID 046d:c31c Logitech, Inc. Keyboard K120 for Business Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
This shows 4 buses with 8 devices and most have 2.0 root hub and only one is 3.0 root hub? Does this mean that only one port of mine supports usb 3.0?