ESI Xkey 37 USB MIDI Keyboard Controller

ESI Xkey 37 USB is a MIDI keyboard controller designed for music production and performance across desktop and mobile systems. It enables MIDI input with velocity sensitivity and polyphonic aftertouch for musicians working with software instruments and digital audio workstations. This makes it ideal for studio, stage, and mobile workflows where compact keyboard control is required.

The controller operates as a USB-powered device with direct plug-and-play connectivity to compatible computers and mobile devices. Performance input is handled through full-size keys and integrated pressure-sensitive controls that transmit continuous MIDI data. Configuration and firmware updates are managed through companion software.

This keyboard supports use in portable setups without external power requirements. Its slim form factor allows transport alongside laptops or tablets. Broad software compatibility enables integration into varied production, learning, and performance environments.

Key Features

• 37 Full-Size Keys: Provides an extended key range with velocity-sensitive response
• Polyphonic Aftertouch: Supports pressure-sensitive control across multiple notes
• USB MIDI Operation: Functions as a 100 percent MIDI-compliant controller
• Integrated Performance Controls: Includes pitch bend, modulation, octave, and sustain buttons
• Cross-Platform Compatibility: Designed for use with Mac, PC, and supported mobile devices

Technical Specifications

What's in the Box