MHL adapter that allows simultaneous USB & HDMI

[SerenityNetworks]

Can anyone point me to an MHL adapter that allows simultaneous USB & HDMI use on my Galaxy Note 3? I would like to connect and use USB peripherals at the same time I am viewing the screen on a larger monitor via HDMI. (Bluetooth is not an option for the peripherals; it must be USB.)

So far I've only been able to find MHL adapters that allow use of HDMI or USB; not both at the same time.

Thanks in advance,
Andrew