Hi,
I've just received my iConnectMIDI4+ this week and I can confirm you that it works.
I'm actually testing this interface with USB class compliant devices (Beatstep, Doepfer Dark Time, Eowave Magma, Waldorf Rocket, MPK Mini and MS20 Controller) connected via a powered USB hub, various IOS midi software and a Roland TR-8 sending Midi Clock to iConnectMIDI4+ via standard Midi DIN.
The clock is routed to USB devices with iConfig software.
If you have question, just ask
Denis