Hi all, Right now I'm using my 256GB SSD i7 Surface Pro 3, and all I can hear is the constant, and by now very annoying sound of the factory installed version of Windows 8.1 Pro constantly disconnecting and reconnecting my passive USB hub. Why is this so annoying? Well for one, the single USB connection on the SP3 is poor in today's standards, but made infuriating by Microsoft taking a leaf out of Apple's book (and not a good one) and making proprietary connections... I'm taking about the angled ports, whereby to find the best fit means to purchase Microsoft's own connectors. Come on Microsoft! Guilty as charged and there is no denying it! Yes I know other USB connectors work, but most of them seem very loose. Including this USB HUB I have plugged in now which has my 3 Ekahau WiFi NIC's plugged into it. Well that's the plan anyhow. I need to use the 3 Ekahau USB NIC's to perform quick Wireless Site Survey testing but the OS keeps dropping and re-adding the passive USB HUB. I'm guessing this is because the Surface Pro 3 can't provide enough power to the USB HUB and therefore the USB NIC's? Or could it be that the physical USB port is so poorly made that every time I move the SP3 screen, even ever so slightly, the USB HUB disconnects and reconnects in Windows? If I use the same USB HUB on my Lenovo T410 laptop, the HUB and 3 Ekahau USB NIC's remain connected, both physically to the USB port and to the Windows 8.1 OS. If I plug each of the NIC's individually into the USB port of the Surface Pro 3 then the connection to Windows remains stable. Wish I could say the same about the physical element (wobbly as ever). Now I know that I am asking for a tall order but I need to have all 3 of the Ekahau USB NIC's plugged into my SP3 whilst I walk around various buildings to perform Wireless site survey's. So an active mains powered USB HUB is not going to work for me. (Obviously) so I was wondering if anyone knew of a small USB HUB that was truly self-powered and could work as a normal USB HUB without power cables? There was a device on the US market (story of my life - US only!) that had chargeable batteries for the USB HUB, but this was discontinued. I know of the "pebble devices" that can charge up iPhones and other Smartphones etc., but I wasn't sure if they would act as a USB HUB too? Has anyone else had problems like this with the single (grrr) Surface Pro 3 USB port??? Thanks all, John P.S. Other than this gripe, I think the SP3 is a great machine. It's a bloody shame though that one of the main reasons I got the thing for I can't use!!!