MICROSOFT Trackball Optical 1.0 Ps2/ubs Compatible Pn X05-87475 Tested Working

Microsoft Trackball Optical 1.0 Ps2/ubs Compatible Pn X08-70386 Tested Working. Works as it’s supposed to. Plugged in and worked nearly immediately. Clean and I noticed no defects. Please see photos for best details on condition. If you have any questions, need more measurements or photos - I am just a message away and always happy to help. I typically make a post office trip daily in the AM every day except Sunday (and days the PO is closed) ^_^ Thank you for considering my item!