Flashtor NVME nas to udmpro

Hi all, so I decided to buy a flashtor - I wanted to try using a raid for audio recording and wanted something really fast. I got the 6bay model and assumed I would go the 2.5g route - but am finding somethings don’t work the way I thought. Anyway I was hoping for advice on what the most efficient way to get the fastest connection to the udm pro would be. Should I have purchased the 12 bay version to connect 10gbe direct? anyway I’m still in return windows so your help is greatly appreciated.