23. According to Wikipedia: Black or White = USB 1.x or USB 2.0. Blue = USB 3.0. Teal blue = USB 3.1. Yellow, Orange or Red = high current/sleep-n-charge ports. Teal: Teal looks pretty green to me ;) And since there's no official color spec for USB, yours could be a different (greener) shade even.
The Rode NT-USB and the Blue Yeti are premium side-address studio mics top under the $200 bracket. However, there is a $50 difference between these two USB microphones, with the Rode NT-USB being the more expensive one. The Blue Yeti offers great value, more polar patterns, and many features for an affordable price. For your keyboard and mouse, it’s personal preference but the motherboard USB ports are probably better so you can keep the more easily accessible front I/O USB ports open for whatever. I like to use any of my usb 2.0 ports on my motherboard for my keyboard and mouse, since they don’t need all that sweet bandwidth available on blue usb . 0 232 280 339 361 73 482 436