I have a laptop I use for both business/personal as a consultant, that I bought 2 years ago. How do I treat this as an asset/expense as a self-employed individual?

I just this year started consulting on the side, but spent about $1400 on the laptop I'm using a couple years ago. I don't know if I can claim it or depreciate it or anything in my business assets or expenses moving forward but figured I might as well ask?