I'm trying to order multiple iOs but it's only letting me do one at a time (it's going straight to the checkout rather than cart).

The Quattros are working ok though and sending me to the cart.

Any ideas?

Nice one, thanks Rob.

Hi Rob, I was wondering if both the Quattro and the iO require powering from a USB charger to run in standalone mode? More specifically, I wanted to connect a combination of Quattros and iOs running into an iConnectivity iConnect Midi4+. The device has a USB 2.0 which supplies 500 mA, is this enough...