Tt eSPORTS Poseidon Z Brown Switch Blue LED Gaming Mechanical Keyboard - US Multilingual Pack FULLY BACK-LIT KEYBOARD: With an LED under each cap, the POSEIDON Z Illuminated is a fully back-lit keyboard, offering 4 levels of adjustable brightness via the Fn (function) + F11/F12 keys. TT ESPORTS CERTIFIED MECHANICAL BROWN SWITCHES W/ 5 YR WARRANTY: These switches were specially chosen by our pro-gamers and engineers, and we believe in them so much that we're offering the world's first 5 Year Warranty on a mechanical gaming keyboard. FASTER RESPONSE MECHANICAL SWITCHES: The Tt eSPORTS Certified Mechanical Brown switches offer the right balance between tactile feedback and actuation force, while being much quieter than Blue switches ANTI-GHOSTING & DISABLE WINDOWS KEY FUNCTION: With 6-8 key rollover, the POSEIDON Z Illuminated will allow you to hit combinations of keys at once to make sure your gaming session is as fluid as it can be. ACCESSIBLE MEDIA KEYS:With the Fn (function) + F1-F7 keys, you can control your volume and media player anytime, without having to minimize your current game or program. International Packaging: English & French translation