The product is a lot of 9 Dell Logitech M-S38 MouseMan computer mouse with a trackball design in black color. It features a scroll wheel and has 3 buttons. The connectivity is via PS/2. The model is specifically designed for Dell computers, making it a reliable choice for users looking for a versatile and efficient mouse for their workstation. Believed to be working. Came from business cleanout. Untested. Sold as is.