RME HDSPe RayDAT – 72-channel PCIe card with 4× ADAT I/O (up to 192 kHz via S/MUX4), 1× SPDIF (RCA), 1× AES/EBU (XLR), 2× MIDI I/O, and TotalMix mixer (42-bit, no DSP effects); provides simultaneous access to 36 digital inputs and 36 outputs, with ultra-stable clocking via SteadyClock FS.
HDSPe RayDAT is a multi-format I/O hub for DAW systems and digital converters. Dedicated chips for SPDIF and AES/EBU allow simultaneous use of both formats, while four optical ADAT ports support sample rates up to 192 kHz via S/MUX4. TotalMix enables advanced routing and independent submixes on all outputs, with full MIDI remote integration and metering via DIGICheck.
The card uses native PCI Express (x1) without bridges, ensuring ultra-low latency (8 buffer steps from ~0.7 to 93 ms) and intelligent sync (AutoSync, Bitclock PLL). Optional WCM module adds Word Clock I/O, while the TCO module adds video/LTC sync. Included accessories: digital breakout cable (AES/EBU + SPDIF) and MIDI breakout (2× I/O).
KEY FEATURES
- 4× ADAT I/O (S/MUX up to 96 kHz, S/MUX4 up to 192 kHz)
- Simultaneous use of SPDIF (RCA) and AES/EBU (XLR)
- Up to 36×36 channels active simultaneously
- TotalMix – 42-bit metering, routing, and submixes
- SteadyClock FS – jitter suppression and stable clocking
- 2× MIDI I/O via included breakout cable
- Options: WCM (Word Clock I/O), TCO (LTC/Video Sync), TDIF (via TEB)
- DIGICheck – advanced analysis and metering tools
- Native PCIe x1 interface – ultra-low latency, no PCI bridges
- Included: BO968 digital cable (AES/EBU + SPDIF), MIDI breakout (2× I/O)
TECHNICAL SPECIFICATIONS
- Total I/O: 36 inputs / 36 outputs (4× ADAT, 1× SPDIF, 1× AES/EBU) + 2× MIDI I/O
- ADAT: 32×32 @ 44.1/48 kHz; 16×16 @ 88.2/96 kHz (S/MUX); 8×8 @ 176.4/192 kHz (S/MUX4)
- SPDIF: 1× RCA, 24-bit/192 kHz (IEC 60958); AES/EBU: 1× XLR, 24-bit/192 kHz (AES3)
- Sample rates: internal 32–192 kHz; external 28–200 kHz
- Buffer sizes/latency: 8 steps ~0.7 / 1.5 / 3 / 6 / 12 / 23 / 46 / 93 ms (system-dependent)
- Clock/sync: AutoSync, Bitclock PLL (ADAT), SteadyClock FS; Master/Slave mode
- All configurations in real time; Enhanced Mixed Mode (all I/O active)
- Interface: PCI Express x1 (spec v1.1), 2.5 Gb/s; bus-powered
- Software: macOS/Windows drivers, TotalMix, DIGICheck; Flash updatable
- Included accessories: BO968 (AES/EBU + SPDIF), MIDI breakout (2× I/O)





