The CPU should be just about ok for 1 1080p transcode. If you are not transcoding, it might be able to run a couple of streams.It’s a Intel[emoji768] Celeron[emoji768] G1610T (2 core, 2.3 GHz, 2MB, 35W). https://www.ebuyer.com/722189-hpe-proliant-gen8-4gb-ram-microserver-ebuyer-com-819185-421
Any ECC RAM should be fine. While you are at it, I would advise maxing it out to 16GB, by getting 2x8GB sticks. Sell the 4GB stick on ebay or keep it for another server if you have one.I’ve just realised that FreeNAS needs 8gb ram and my server only has 4gb. I’ll grab some more. Any recommendations?