1) Hi Guys, I have a shit HUB, powered with 3A (at least in specifications), when I plug my Gekko directly in notebook port, I can mine at 200 mhz fine, but when I plug into that Hub, it even don´t start to Mine. Can I throw it away?

2) Another question, is it preferable a 3.0 USB hub or a 2.0 USB Hub?