N/A 4 Mouse-track Ppt Vision

I have 4 of them. two of them have a dvd female 9 pin connector. One of them has a mini din connector. The other one I don’t know yet. Sold in a lot of four. Comes with extra cable. I don’t know if these work and I have No way of testing them. Model number is b-59XPP. Sold as is. No guarantees. Not return. Great for people Who collect antique computer stuff. Keep in bags. I don’t plan to sell separately