ASI5810 and ASI5811 PCI Express Linear Sound Cards

The ASI5810/ASI5811 are professional PCI Express audio adapters designed for use in radio broadcast production. The adapters offer two stereo record streams from either a balanced analog input or AES/EBU digital input and four stereo play streams mixed to both a balanced analog output and an AES/EBU digital output.

The ASI5811 also includes is a microphone input, with low noise pre-amp and a 48V phantom supply. Both versions also include GPIO in the form of four opto-isolated inputs and two relay isolated outputs.


  • Four stereo streams of PCM playback
  • Two stereo streams of PCM record
  • Balanced stereo analog input and output
  • PCIe interface
  • GPIO: Four opto inputs and two relay outputs
  • AES/EBU digital input and output
  • Low noise microphone input with 48V phantom supply and DSP based compressor/limiter and 3 band equalizer (ASI5811)
  • 24bit analog-to-digital and digital-to-analog converters - 100dB SNR and 0.0025% THD+N
  • 11 to 192kHz sample rates
  • MRX™ multi rate mixing technology supports digital mixing of multiple sample rates
  • SoundGuard™ transient voltage suppression protects against lightning and other high voltage surges on all I/O
  • Up to 8 cards in one system
  • Half-height design and included mounting bracket allow for installation in small form factor systems
  • Windows and Linux software drivers available
ASI5810/5811 Datasheet
Cable options

Windows Combo Drivers
Linux HPI and ALSA Drivers

Notes & Errata:

  • ASI5810/5811 adapters REQUIRE a driver version of 4.18.00 or later.  Please download the latest version using the links above.