I've been searching for the same thing and the cheapest is the QNAP QSW-2104-2T for $160 USD which seems to be the same as the Trendnet TEG-S762. It has 2 10G

I've been searching for the same thing and the cheapest is the QNAP QSW-2104-2T for $160 USD which seems to be the same as the Trendnet TEG-S762. It has 2 10G multigig ports and 4 2.5G. My eventual goal is to have NAS and desktop on 10G and rest on 2.5G. Unfortunately my NAS setup can't really take advantage of the 5G+ speeds and 10G PCIE cards are not competitively priced so it will get a $17 2.5G PCIE card for now.