I got private message inquiry whether this thread is legit from Morblias. I hereby confirm that Dave and Leszek (tytus) work together and that chips sold here are genuine. The rest is your relationships with your seller (i.e. payments, terms, etc.).
However - as my opinion whether you are recommended to buy or not buy - I don't know your regulations there and suppose they're quite strict, like FCC stuff and EMC tests. Until for example proper measurements of equipment are done - it may be risky to install many of these near yourself due to electromagnetic emission and noise. So either properly designer board and/or filters and/or shielding is required. I hope that this would be clarified soon. This is also true for homebrew devices that you make and don't care about switching noise such devices produce (like I saw in some DIY stuff where powering of such high-power chips are done in absolutely insane ways, or like problems with other asic vendors, you know them by the way likely, where their shipments were banned by customs due to these violations).
Anyway, as far as I know Dave has as well options to install miners in his location - this would be likely safe in any way, and maybe if you install these - before proper measurements done (i.e. in special laboratory with antennas where typically EMC measurements are done) - this maybe risky to install at home, or at least close to you - so don't sit near miner 24x7 and don't put those close to you.
You should care about that and do not put your health into unnecessary risk. However I suppose Dave will do his best to solve these issues and make device fully compliant for safe usage. However that still won't mean that such equipment can be installed in bulk at home, and should be spreaded in space for maintaining safely low electromagnetic noise. Likely also undervolted boards is nice choice for safety, but all of that should be measured, and likely will be measured, the only delay could be there (and it is basically your choice) that such measurements could take additional time and can't be done before August timeframe. This depends.
Bitfury,Dave,Leszek (tytus),are you guys work for the same boss?
What's the connection between 100TH/Bitfury/Megabigbower/BFSB?
Or.Does Bitfury/Megabigbower/BFSB share the 100TH's money?