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The ASRock Taichi is a great motherboard. But to get a more specific answer to your question you might ask it in a forum dedicated to AV users. Are you looking for a motherboard that is less expensive?
You might also try googling something like: "What Asus (or Gigabyte, or ASRock) socket 1151 motherboards that are compatible with quick sync."
Intel® Quick Sync Video is Intel's brand for its dedicated video encoding and decoding hardware core. Quick Sync was introduced with the Sandy Bridge CPU microarchitecture on 9 January 2011, and has been found on the die of Intel products ever since.
AFAIK, the ability comes from the iGPU....so long as the cpu supports it, it will work on a board with integrated video outputs.
https://en.m.wikipedia.org/wiki/Intel_Quick_Sync_Video
My suggestion is to go to newegg.com or ASRock website and do a comparison of the boards to see exactly what you are missing out on. I doubt it is much.
https://www.newegg.com/Product/Product.aspx?Item=N82E16813157848
https://www.newegg.com/Product/Product.aspx?item=N82E16813157857
Perhaps consider making your backup drives external and connected through usb. That will free up a port or two. Also consider m.2 pcie nvme drive(s) as well for OS and warm and fast storage.