Reply to Sound card advice

Hello, I am just getting into DJing and was believeing about getting the s4. However, my laptop only has a shitty integrated sound card. My question is, would I need to purchase another external sound card to use the s4 and software? I know the s4 has a sound card in it but would I need another sound card in order to cue, run the software, etc? Any advice is appreciated because I am not very knowledgeable on the subject.

Also, if I would need another sound card, recommendations on which ones would be the best choice are appreciated. grasias