Characteristics and Interoperability Optilite MK872 Fantech. Compared to other mechanical keyboards, your keyboard's PCB board will be shielded from a short circuit by its water-spill resistance because of its NANO technology. 87 Total Keys for the OPTILITE MK872 RGB Optical Switch Keyboard Full Keys for Blue Optical Switch 19 Modes of Anti-Ghosting RGB Lighting Dust and Water Resistant 50 million keys Durability 1.8-meter Nylon Braided Wire Dimensions: 358 x 139 x 37 mm RGB OPTICAL SWITCH KEYBOARD WITH ALL KEYS AND ANTI-GHOST OPTILITE MK872 That's also what a good anti-ghosted keyboard does; it makes sure that each key you hit corresponds precisely and simultaneously with the game. DUST AND WATER PROOF DESIGN Compared to other mechanical keyboards, your keyboard's PCB board will be shielded from a short circuit by its water-spill resistance and NANO protection.