Matrix Array (Primate)

The Matrix Array can be configured for large animal experiments, interfacing with large populations of neurons in 3D space, up to 10 mm deep.

  • 3D Neural Interface – The Matrix Array concurrently spans cortical columns and layers, covering a volume of tissue and interfacing with large populations of neurons.
  • Robust – Lab-tested and refined to the smallest detail, the Matrix Array can withstand demanding chronic applications.
  • Versatile – The modular assembly of the Matrix Array allows for varied configurations: record from cortical and/or subcortical areas, as well as from the brain surface, all with the same probe. Electrode length, site area, and shank/site spacing can all be customized for your application.
  • High Channel Density – Record and stimulate from 64, 128, or 256 channels.
  • Refined surgical procedure – NeuroNexus worked closely with leading primate labs to develop a low-speed, low-risk, automated implantation procedure, reducing recovery time and preserving tissue health.
  • Optogenetics-compatible – Configure a Matrix Array with an integrated optical fiber for novel optogenetics applications.
  • Self-Aligning adaptors – When recording from the Matrix Array, a self-aligning adaptor is connected with a torque wrench, reducing strain on the animal. This allows the Matrix Array to be connected to a variety of existing recording systems, and protects the pedestal when not recording.


Channel Count 64, 128, 256
X-Axis (2D Array) Dimension 1800 µm max width
Y-Axis (2D Array) Spacing Options 200 µm, 300 µm, 600 µm (specify when ordering)
Z Span (Depth) Up to 15 mm (customizable)
Cable Length (Distance from implant to pedestal) 30 mm (customizable up to 50 mm)
Electrode Site Material Iridium (standard)

Platinum, Gold (custom)

Electrode Array Thickness 50 µm
Pedestal Machined titanium skull mount, stainless steel connector package
Dimensions (Pedestal) 16 mm x 20.6 mm (W x H), skull mount width: 29 mm

Ordering Information

  • Browse the Primate Catalog to see currently available electrode array designs.
  • Select your desired array designs: 2 for 64-channel Matrix Arrays, 4 for 128-channel Matrix Arrays, and 8 for 256-channel Matrix Arrays. You may mix array designs to create a tailored neural interface.
  • Select your desired spacing between arrays: 200 µm, 300 µm, 600 µm, or 1000 µm.
  • Select your self-aligning adaptor to connect to your recording system.

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