Late to the party but if you haven’t grabbed one yet or if you’re unhappy with the one you’ve got… SMSL SQ9 MQA is outstanding for the money. It runs around the 450 mark so a hair more than your budget but it supports 32 bit 768. I’ve tried several starting with a Cambridge dacmagic plus which was head and shoulders better than anything built into a motherboard or midrange amplifier. That stayed attached to the computer for years while I swapped out dacs on the living room stereo. Now have a Cambridge audio dacmagic 200 in the living room and the smsl in the computer room and I like it best even though it’s cheaper.