what is it 5vsb? i dont understand thank you guys

 

Neither do we. Supply us with the context and perhaps we can help you better.

 

Hello,

I assume you are talking about a PC powersupply.
Have a look here:

http://www.tomshardware.co.uk/forum/117461-28-what-5vsb
http://www.bootbeta.com/archives/whats-the-function-of-5vsb-19.html

Bertus

 

Did you try google?
bertus beats me to it.

http://www.bootbeta.com/archives/whats-the-function-of-5vsb-19.html