Nektar MIDIFLEX 4 – Compact USB MIDI Interface with Flexible Routing

The Nektar MIDIFLEX 4 is a rugged, class-compliant MIDI interface designed for effortless connectivity and versatility. With configurable ports, auto-sensing LEDs, and standalone split/merge functionality, it’s perfect for both studio setups and on-the-go MIDI routing—no drivers or menus required.

Key Features

• USB class-compliant: Plug-and-play setup—recognized instantly on macOS, Windows, Linux, and iOS without drivers.
• 4 Configurable MIDI Ports: Flexible routing options—choose between 1 in/3 out, 2 in/2 out, or 4 out depending on your setup needs.
• Auto-detect LEDs: Clear visual feedback from LEDs that instantly show whether a port is acting as input or output.
• Standalone Merge/Split Mode: Functions as a standalone MIDI splitter (1-to-3) or merger (2-to-1) when powered externally—ideal without a computer.
• Expandable with Multiple Units: Need more ports? Connect multiple units via USB for scalable MIDI routing.
• Build Quality & Accessories: Durable aluminium housing, powered by USB (or optional USB PSU), includes USB cable and Bitwig 8-Track software license.

Customer Benefits

Whether you're organizing MIDI flows in a busy studio or syncing synths in a mobile rig, the MIDIFLEX 4 simplifies your setup—giving you the right ports, clear LED signalling, and flexible MIDI routing in a sleek, tool-free design.

Quick Specs

• Interfaces: 4 × MIDI DIN ports, USB-B for connection
• Routing Modes: 1 in/3 out, 2 in/2 out, 4 out, plus standalone merge/split
• LED Indicators: Per-port LED to show input/output status, plus power LED
• Power: USB bus-powered or optional USB power supply in standalone mode
• Dimensions: 11.1 × 6.5 × 3.3 cm
• Weight: Approx. 180 g

What’s in the Box

• Nektar MIDIFLEX 4 MIDI interface (B-Stock)
• USB cable
• User guide
  

Use Cases / Ideal For

Perfect for electronic musicians, small studios, live performers, and hybrid setups. Ideal when you need lightweight, modular MIDI routing—like splitting one controller to multiple synths or combining multiple hardware sources in a streamlined fashion.

Compatibility

Fully compatible with any MIDI-based software or hardware. Works plug-and-play on macOS, Windows, Linux, and iOS. It’s also useful as a computerless MIDI hub via standalone mode.

Pros & Cons

✅ Pros:

• Effortless, driver-free setup across platforms
• Highly flexible port configuration and standalone routing
• Compact, sturdy aluminium build
• Scalable: stack multiples for expanding MIDI connectivity

⚠️ Cons:

• No MIDI merge/split presets—requires manual mode switching
• No advanced features like MIDI filtering or USB-A host functionality

The Nektar MIDIFLEX 4 is a compact powerhouse—offering modular MIDI routing, intuitive operation, and expandable design for any MIDI-based workflow.