Evolution MK-249Z is a 49-key USB MIDI controller keyboard featuring velocity-sensitive keys, assignable pitch bend and modulation wheels, a volume/data slider, 10 non-volatile memory locations, and a 3-digit LED display. It operates via USB plug-and-play or a 9V DC power supply.Key Hardware SpecificationsKeyboard: 49 full-size, touch-sensitive (velocity-sensitive) keys.Controllers: Assignable modulation wheel, pitch bend wheel (or volume slider depending on exact sub-model revision), and data entry buttons.Display: 3-digit red LED screen for tracking presets, channel numbers, and controller values.Memory: 10 non-volatile memory slots that save your custom settings even when powered off.Connectivity and PowerUSB Port: Class-compliant USB interface for connection to PC and Mac.MIDI Out: Standard 5-pin MIDI output/USB...