Introducing Commutator Pro: Automated Cable Management for High-Density Electrophysiology
Electrophysiology in freely moving animals demands flawless cable management. The Commutator Pro introduces active torque compensation. With an ultra-lightweight, sub-1g IMU sensor to detect cable rotation in real time, it automatically drives an internal motor to neutralize twists. Compatible with both Neuropixels and passive probes right out of the box, it protects your signal integrity without requiring changes to your surgical workflows.
Lab-Tested Performance & Rigorous Validation
To ensure seamless integration into demanding laboratory workflows, the Commutator Pro has undergone exhaustive validation across quality control setups and collaborative neuroscience laboratories, focusing directly on the operational standards of high-density recordings:
In-Vivo Compatibility: The system has been stress-tested alongside Neuropixels (1.0 and 2.0) and Intan headstages under continuous movement conditions, demonstrating reliable data transmission with no communication errors detected across multi recording sessions.
Ultra-Low Electrical Noise Profile: Evaluation using Open Ephys and Kontex GUIs revealed no detectable motor-frequency artifacts. The resulting clean spectrum profile is suitable for high-density neural recordings.
Power spectrum recorded via Open Ephys during active commutation (Neuropixels 2.0 Multishank, 384 channels, 0–15 kHz). No motor-frequency artifacts are detected across all channels.
Low Acoustic Noise: Acoustic noise was measured at 32–35 dB SPL at 30 cm distance using a mobile sound level meter (ambient background: ~30 dB SPL).
Long-Duration Operational Stability: Utilizing automated animal simulation rigs (modeling continuous head-nodding, side-to-side head shaking, and rapid rotational variations up to 8s/R), the Commutator Pro successfully completed continuous 24-hour run protocols without tracking degradation or cumulative error. The minimum rotational detection threshold (deadzone) is user-adjustable to suit specific experimental requirements.
Extended Cable Length Validation: The Commutator Pro is engineered to preserve signal integrity across extended transmission distances, supporting a maximum total combined length (DAQ cable + Headstage cable) of up to 7 meters for Neuropixels setups and up to 6 meters for HDMI configurations. While optimized for high-bandwidth data transmission, minor configuration exceptions may apply depending on specific hardware combinations.
Features & Technical Specifications
Explore the full technical specifications, dimensional drawings, and performance data on the official product page: https://www.kontex.io/commutator-pro
