ESI Xkey 25 USB MIDI Keyboard Controller

ESI Xkey 25 USB is a MIDI keyboard controller designed for mobile music production and performance. It enables MIDI input with velocity and polyphonic aftertouch for musicians working across software instruments and recording environments. This makes it ideal for portable studios, live setups, and practice workflows where compact control is required.

The keyboard operates as a USB-powered MIDI device with plug-and-play connectivity across multiple platforms. Performance controls are integrated directly into the keybed and touch-sensitive buttons for expressive input. Configuration and firmware management are handled through companion software applications.

This controller supports consistent performance across desktop and mobile systems. Its slim form factor allows easy transport alongside laptops or tablets. Compatibility with common music software enables use in varied production and learning contexts.

Key Features

• 25 Full-Size Keys: Provides two octaves of real-size, velocity-sensitive keys
• Polyphonic Aftertouch: Supports pressure-sensitive input 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: Works with Mac, PC, iOS, and other supported systems

Technical Specifications

Keyboard
25 full-size keys (2 octaves)

MIDI Compliance
100% MIDI compliant

Key Response
Velocity sensitive
Polyphonic aftertouch

Performance Controls
Pressure sensitive pitch bend and modulation buttons with continuous MIDI control data
Octave +/- push buttons
Sustain button

Power
USB powered
No external power supply needed

Connectivity
Micro USB connector
USB cable included

Dimensions
Width: 388 mm (15.27 in)
Height: 135 mm (5.31 in)
Depth: 16 mm (0.62 in)

Weight
600 g (1.32 lb)

Power Consumption
125 mW / 25 mA

What's in the Box

(1) ESI Xkey 25 USB MIDI Keyboard Controller
(1) USB Cable