Hello, I'm new in the forum and in mining too. This is going to be my first mining device so I want to ask you guys about devices and profits.

Giant X10 can mine 7 algos but low profit then D9 Decred.
D9 Decred has more profit daily and monthly then Giant X10.

So which device should I prefer? I'm a little bit afraid of the Decred because of the future. What do you think about the D9 and future profit? Is it going to fall as Siacoin does?

Waiting for answers thank you:)