LOGI M90 corded optical Mouse grey 80000596 910-001793 Product Description: Logitech M90 - mouse - USB Device Type: Mouse Connectivity Technology: Wired - USB Orientation: Right and left-handed Localisation: Western Europe Movement Detection Technology: Optical Movement Resolution: 1000 dpi Features: Scrolling wheel OS Required: Apple MacOS X 10.4 or later, Linux Kernel 2.6.x or later, Microsoft Windows Vista / XP / 7 Manufacturer Warranty: 3-year warranty