@jjss49 in what sense is the trendnet switch poor? Have you actually tried this switch?
I’m using the unmanaged 8 port 1g version (same as in OP’s setup). It does no harm in my system - I’ve tested with and without. With the trendnet switch I actually noticed a slight decrease in noise floor but that could be due to the WW Ethernet cable that’s feeding it.
On the other hand a similarly priced D-Link switch degraded the sound quality. It was ejected immediately.

