SPILL-PROOF KEYBOARD RESISTS COFFEE, WATER, SODA AND OTHER LIQUIDS WITH A SEALED MEMBRANE DESIGN. THE SEALED MEMBRANE LETS LIQUID RUN THROUGH WITHOUT DAMAGING KEYBOARD ELECTRONICS. SLIM PROFILE SAVES VALUABLE SPACE. WITH A STANDARD 104-KEY LAYOUT, THE KEYBOARD OFFERS RELIABLE PLUG-AND-PLAY OPERATION WITH A WIRED USB CONNECTION. KEYBOARD IS COMPATIBLE WITH PCS AND MACS. SYSTEM REQUIREMENTS OPERATING SYSTEM(S) MICROSOFT WINDOWS 98 OR HIGHER