Antimicrobial material prevents the growth of mold, mildew, and fungi. Rugged water-proof and washable* design resists spills and makes cleaning easy. Plug and play via USB or PS2. Soft-touch keys offer a crisp, responsive touch for added comfort. Black keyboard with 104-key layout. Keyboard designed for use in many different environments, such as hospitals, government offices, schools and more. Never immerse the USB plug.