RME HDSPe AoX-D 512-Channel PCI Express Card

Ultra-High-Channel Dante & MADI Interface for Mac and Windows

Deliver high-channel Dante and MADI performance to your Mac or Windows digital audio workstation with the RME HDSPe AoX-D, a professional 512-channel PCIe audio interface designed for demanding studio, broadcast, and live environments.

Occupying a single PCIe slot, the HDSPe AoX-D transmits and receives up to 256 channels of Dante network audio through two dedicated RJ45 Gigabit Ethernet ports. With optional MADI expansion cards, you can integrate up to four MADI I/O for an impressive 512 total channels in and out—offering unprecedented flexibility in one streamlined interface.

Flexible Routing and Control with TotalMix

RME’s acclaimed TotalMix DSP mixer gives you complete control over routing and monitoring. Use the intuitive driver dialog or web interface to configure Dante and MADI channel counts, and then select which inputs feed the 256-channel TotalMix engine. The remaining channels pass through directly, ensuring full visibility of all 512 channels in your DAW for seamless recording and mixing.

TotalMix provides ultra-low-latency mixing with advanced features like presets, loopback, submixes, and flexible routing, making it ideal for both studio and live workflows.

Expandable with Optional MADI Boards

Customize your setup with up to two optional MADI expansion boards:

• AoX MADI Optical (128x128): Adds 128 channels of optical MADI with two SFP I/O connectors and BNC wordclock I/O.
• AoX MADI Coax (128x128): Adds 128 channels of coaxial MADI with dual BNC input/output connectors and wordclock I/O.

Each expansion seamlessly integrates with the HDSPe AoX-D to combine Dante and MADI streams in one powerful system.

Key Features

• Up to 128x128 Dante channels
• Optional 128x128 MADI expansion (up to two boards supported)
• 2 × Gigabit Ethernet (802.3 compliant)
• 1 × stereo AES/EBU I/O
• 1 × MIDI I/O
• 1 × stereo headphone output
• 24-bit / 192 kHz audio resolution
• Compatible with ARC USB remote control via USB port
• Supports external Thunderbolt enclosures for mobile setups

Perfect for Studio, Broadcast, and Live Production

Whether installed in a DAW workstation, external Thunderbolt chassis, or mobile recording rig, the RME HDSPe AoX-D delivers unmatched reliability, flexibility, and sound quality. It’s the ultimate solution for professionals demanding high-channel-count Dante and MADI connectivity in one PCIe card.