Portable Amp for work

[GiraffePencils]

Hey,

I was wondering if anyone could suggest a portable amp I could use at work?
My work pc has terrible drive for onboard audio, it can barely get earphones up to a decent level, so I was wondering if there was a small portable amp people could suggest?

I'm not looking to spend very much, less than 50 ideally

 

[GiraffePencils]

I'm using some jays earphones atm.
They sound great through my laptop, but this pc just isn't getting anything out of them.

That sound blaster looks good, and yeah, this is a work-bog-standard pc.
All my works on servers etc, so I'm just terminaling in, so cheapest pc they could get haha.