I can also confirm that the F1 FPGA miner is a solid deal. I found the F1 on discord and contacted their support team and they answered all one thousand questions

lol. I noticed that everyone I asked about the F1 said that it was great. I purchased with 2500 bitcoin and thirty minutes later I was mining. I can tell you with out a doubt that the F1 is a great buy.... I am new to bitcoin talk but have been a member of discord for a long time... if you have any questions my user name is mosera5988. I have already made some crypto and should get my ROI back soon...Thank you Blackminer Team!!!