Back to the topic.
What is the difference of this ASIC to GPU mining?
ASICs can mine one algorithm only.
GPUs were more flexible with the algorithm selection.
Is this practical to buy and use?
Yes, only need a bit setting (interface network and pool setting). GPUs rigs are more complex than ASICs.
Can we mine other coin using it?
Yes, as long as those coins have accordance algorithm with the machine.
Personally, I am GPU miner and I like to be.
Thanks mate for your very constructive answer, well for those crying baby here who've didn't understand the purpose of this community forum, Why they ask me to look for google while some members here are willing to throw some help?
Thanks Buddy!!