Fosi Audio MD3 MagSafe Portable DAC & Headphone Amplifier

MagSafe Convenience. Hi-Fi Sound. Made Personal.

The Fosi Audio MD3 is a MagSafe-compatible portable USB DAC and headphone amplifier designed to bring high-fidelity audio to your smartphone in a compact and convenient form.

Powered by the ESS Sabre ES9039Q2M DAC and four ESS ES9603Q amplifier chips, the MD3 supports high-resolution audio up to 32-bit/384kHz PCM and DSD256, delivering detailed, dynamic and immersive sound for music, gaming and everyday listening.

MagSafe Convenience

Snap on and listen.

The MD3 features a strong N52 magnetic connection designed to attach securely to compatible MagSafe devices.

Its compact design keeps the DAC neatly positioned against your smartphone, providing a cleaner and more convenient alternative to a traditional dangling USB DAC.

High-Resolution Audio

Hear more detail from your favourite music.

The MD3 uses the ESS ES9039Q2M DAC to support PCM up to 32-bit/384kHz and native DSD256.

Combined with four ESS ES9603Q amplifier chips, the MD3 delivers detailed and dynamic sound for high-resolution and lossless music playback.

Powerful 3.5mm & 4.4mm Outputs

Connect your favourite headphones and IEMs.

The MD3 features both 3.5mm single-ended and 4.4mm balanced outputs, giving you flexible connectivity for different headphones and IEMs.

The 3.5mm output provides up to 80mW ×2 at 32Ω, while the 4.4mm balanced output delivers up to 180mW ×2 at 32Ω.

Customisable Display

Make your DAC your own.

The MD3 features a built-in display that can be customised with images, emojis and animations.

Upload your favourite images or choose from available interactive content to create a portable DAC that reflects your personality.

Pass-Through Charging

Listen while charging.

With dual USB-C ports, the MD3 allows you to enjoy your music while keeping your compatible smartphone charged.

The USB-C connectivity also supports audio decoding, image transfer and firmware upgrades.

Clean & Detailed Sound

Designed for a cleaner listening experience.

The MD3 provides up to 116dB SNR and dynamic range through the 4.4mm balanced output, helping to deliver clean and detailed audio with low distortion and a low noise floor.

With support for headphones from 16Ω to 300Ω, the MD3 is suitable for a wide range of headphones and sensitive IEMs.

Compact & Portable

High-fidelity audio without the bulk.

Measuring just 70 × 45 × 12mm and weighing approximately 50g without the cable, the MD3 is designed for everyday portability.

Take it with you for commuting, travelling, working, gaming or simply enjoying your favourite music on the go.

Why Choose the Fosi Audio MD3?

• MagSafe-compatible portable USB DAC and headphone amplifier
• Strong N52 magnetic attachment
• ESS Sabre ES9039Q2M DAC
• Four ESS ES9603Q amplifier chips
• Supports PCM up to 32-bit/384kHz
• Native DSD256 support
• 3.5mm single-ended output
• 4.4mm balanced output
• Up to 80mW ×2 @ 32Ω via 3.5mm
• Up to 180mW ×2 @ 32Ω via 4.4mm balanced
• Supports headphones from 16–300Ω
• Customisable display with images and emojis
• Built-in interactive content
• Dual USB-C ports
• Pass-through charging
• UAC 2.0 and UAC 1.0 support
• Compact 70 × 45 × 12mm design
• Approx. 50g without cable
• Ideal for smartphones, IEMs and headphones

Specifications

What's in the Box

• Fosi Audio MD3
• USB-C to USB-C Adapter
• Quick Guide
• User Manual