There are so many USB to optical and other sound cards that the answer must be simply yes. Here is the google.
is there a way to install an internal or external soundcard to this
computer Lenovo ideacentre b540. I am wanting to use my surround sound system on this computer. right now I am using a 3.5 mm headphone jack through an adapter. sound is choppy,buzzy popping depending on the settings I use on the surround sound control panel