Rosewill Micro RK-9000 BR Aluminum Mechanical Keyboard, Cherry Brown MX Switch, Memory Design, QWERTY Layout Cherry MX Mechanical Switches 32bit ARM Processor Assist with Ultra Fast Response Times 128KB Onchip Memory to Support Preprogrammed Functions Swappable Key Placement for a More Native Feel in Different OSes (Linux/Unix/Mac OS X / Windows) Aluminum Casing Provide a Sleek Elegant Style and Premium Feel