The Biggest Discount Ever of Blackminer For Conquering Hard Time Together!

[HashAltcoin]

For conquering the tough time together, we make the biggest discount  ever!  After the periodic adjustment, we will serve everyone as better as before, Come on! 
https://hashaltcoin.com/cn/miners
F1-u hosted: 1458$
F1+ hosted: 1358$

[sxemini]

For conquering the tough time together, we make the biggest discount  ever!  After the periodic adjustment, we will serve everyone as better as before, Come on! 
https://hashaltcoin.com/cn/miners
F1-u hosted: 1458$
F1+ hosted: 1358$

What is the difference between F1-U and F1+.

F1+ is cheaper, faster, use less electricity than the F1-U. Specs are from your page