I have a Readynas (now owned by netgear) 'prosumer'-ish nas. 6 bays desktop form factor. It's great, i replaced an older readynas (pre-netgear) which i got about ~10 years out of. It's actually functional except for the power supply. I couldn't find a replacement fast enough for my needs so I upgraded, bodged a normal pc power supply to do a data transfer. It was so old I couldn't just put the old drives in the new chasis and preserve the data.