help please/offer advice

[olliefoler]

hey there guys!

i'm new to this forum so what's up? anyway, i have a problem with my s4 mk1 and my mk1 novation launchpad,

i'm currently using a windows surface pro 3 (which only has one usb port) so i recently bought a non powered usb hub to accommodate both devices to work with my traktor, however i can plug in the launchpad and it works but i can't run the s4 off the hub and traktor doesn't recognise my s4 until i run it off the main single usb on my laptop, how can i fix this issue?
many thanks
ollie

[Patch]

http://www.ebay.co.uk/itm/Native-Ins...3D252111158019

$_57.JPG

[padi_04]

You'll want to get the S4's power supply like Patch recommends, this will also get better headphone volume and LED brightness out of the S4.