Before the Spring Festival(Chinese new year),I5 8400(in bulk) = ¥850 Yuan and I3 8100 = ¥530 Yuan;Before 2018-4-1,in China,I5 8400(in bulk) = ¥900 yuan ,about 140 US dollars;Now I5 8400(in bulk) = ¥1050 yuan.Please see a minute.Something is very cheap on taobao in China. https://www.taobao.com/
I did not want you buy something in China, i just want you compare the price of these U and mobo.In China now who buy pc of Skylake/kabylake will be regarded as idiot.
Maybe these prices will be lower after 2~3 months.
Sometimes i buy from AliExpress but like i say takes 2~3 months to reach my house and somethings don't worth it. It is very difficult here. About the ME version, to downgrade it i have to downgrade the BIOS version, is that correct?