Used and fully working Apple USB mighty mouse compatible with any Mac with a USB port. Although the track ball on the mouse is working smoothly, the design is prone to clogging through normal use and so degrading of the track ball movement would not be considered a product failure during warranty.
Condition : Grade-B
B-grade means that although fully working and in generally good condition, the product will have minor but noticeable cosmetic marks or defects.
Part Number(s) : 661-4405, 661-3662, A1152
Warranty : 3months