Side Note:
Those SCART to HDMI transfer audio as well if you use a SCART cable (like Amigaikit's) that allows it; that being said, MonoPrice is a company with a stupid name that sells excellent products (I have at least 2 of theirs) for reasonable prices.
They even have features they don't advertize: my 5-port HDMI switcher automatically selects the signal varying the most, but allows selection via the remote or just a finger wave in front of the IR receiver.