QNAP TS-431KX-2G 4 Bay Desktop NAS Enclosure - 2GB RAM, Annapurna Labs 4-core, 1.7GHz Processor - for SMB, startup offices & high-speed environments

I've very little positive to say about this unit but when it works it seems to work well. The thing that concerns me is the flakiness of the OS and hardware is underwhelming.I've had a number of quirks with this unit from shares and permissions being very picky as to when they work. HDD sleep mode that is impossible to get to work for more than 30 mins and that's after extensive deep dives switching qnap services off. Cold boot times are slow, anywhere between 5 - 15mins to access resources. SMB shares / permissions seem to have a mind of their own with enhanced folder permissions enabled.Speed wise with 40tb worth of drives it is snappy at pure throughput but there isn't much performance available with a 32bit cpu if you're considering much more than simple storage.With 4 x 3tb drives the unit idled at around 38w, with 4 x 10tb drives usually around 50w. Obviously under load both figures were higher.Upgraded from 2gb to 4gb of ram which wasn't too bad to swap out. The cpu lacks grunt though so the memory headroom doesn't count for much.Poor performance when it comes to acoustics and moderately noisy drives seem excessively noisy when mounted in the chassis. A little internal noise dampening / acoustic foam would cost pennies for each unit but none present.Anyone considering investing in the Qnap eco system really needs to Google qnap deadbolt and separately qnap sleep issues if they are concerned about energy usage.If you're happy with a lot of tinkering, ssh scripts and don't value your data highly then it's a maybe.I'm still debating returning it and lack confidence it will be reliable.