OK, i have some information, but doesn't seems to match what you are saying .
A2 chip is real
1, I heard you can use the A1 chip from BTC mining rig to produce the new miner. so it is relatively quick.
2, but i think there are problems with the A2 chip on the actual calculation power. your 75M might drop 12% in the end. this is the real test result i get from some initial miner producers. maybe it is early miner version.
3, You obviously is not the first batch of people who get the miner/chip, i have to say promoting it like this with 75M abd 7500 USD is like 100USD per M . you are misleading all the folks here. because my understanding is that chips are very expensive, at your price , you must have got your chip under 160USD as each chip is 1.6M and you are selling 100USD per M. I would be suprised if you get that price.
This guy is either a scammer or just trying to get peoople's attention. i bet the first batch miner will be more expensive than that.