I choose Supra Cat8 for its build quality, at 50 bucks per meter, I thought it was a reasonable upgrade. At the time I was using a Node2i with a ARC dac, can’t say for certain if there was definitive improvement over the stock Cat5, at best there was a better sense of clarity? I did recently play with Monoprice Cat8 from Amazon Prime, which is a really well made cable (heavier gauge than Supra). I didn’t detect a difference between the Supra and Monoprice. admittedly, I suck at picking out micro nuances so ymmv.
Nevertheless at $30 for 25ft run it’s a no-brainer for anyone who wants to upgrade or compare against “audiophile” ethernet cables costing hundreds per foot.