- Fosi Audio MD3
- User Manual
- USB-C to USB-C Adapter
- Quick Guide
Fosi Audio MD3 Portable Magnetic DAC Headphone Amplifier USB-C (Black)
- Portable USB-C DAC and headphone amplifier for phones, tablets, laptops, and mobile setups
- Magnetic design helps reduce dangling dongle clutter with compatible phone setups
- ESS Sabre ES9039Q2M DAC supports up to PCM 32bit/384kHz and native DSD256
- 3.5mm single-ended and 4.4mm balanced outputs support wired headphones and IEMs
- Dual USB-C ports allow listening while charging with supported connections
- Custom circular display supports uploaded images, emojis, and animations
- Compact 50g body measures 70 × 45 × 12 mm for pocket-sized carry
The Fosi Audio MD3 MagDac Portable DAC Headphone Amplifier brings wired HiFi listening to phones, tablets, laptops, and portable setups through a compact USB-C design. Its magnetic back helps the amplifier attach securely to compatible phone setups, reducing cable drag while keeping the device close to your source for cleaner everyday carry.
High Resolution DAC Performance
Powered by an ESS Sabre ES9039Q2M DAC with ESS ES9603Q amplifier chips, the MD3 supports up to PCM 32bit/384kHz and native DSD256 through UAC 2.0. It gives listeners a dedicated audio path for IEMs and headphones, with support for both 3.5mm single-ended and 4.4mm balanced connections.
Listen While Charging
Dual USB-C ports help solve a common portable audio problem. The top USB-C port supports audio decoding, image transfer, and charging, while the bottom USB-C port supports audio decoding, image transfer, and firmware upgrade. This layout lets users keep music playing while power is connected during commutes, desktop sessions, travel, or gaming.
Personalized Circular Display
The MD3 adds a customizable circular display for a more interactive portable audio setup. Users can upload images, emojis, and animations, while the Vista Button adds direct control over supported display functions. At 50g without cable and 70 × 45 × 12 mm, the MD3 is made for compact daily carry without sacrificing balanced output capability.
Starting at $12.49/mo
Estimated over 12 months with Affirm, subject to eligibility and approval.
Flexible payment options available
Interest-free installments and monthly financing may be available through Shop Pay on eligible purchases.
Starting at $37.50
No interest if paid in full by the promotional terms. Minimum monthly payments required and subject to credit approval.
Free Standard Shipping
Orders of $25 or more qualify for free standard shipping on eligible items.
Most in-stock orders placed before 1 PM EST Monday–Thursday ship the same business day. View Shipping Policy
Free Local Pickup
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