Features: The PC817 8 channel optocoupler isolation board offer independents voltages control for up to 8 channels, enabling seamless conversion from low levels signals (3.3V/5V) to highly voltages outputs (up to 30V) with antiinterference capabilities, for voltages isolation in electronics projects. Featuring signals input voltages ranges of 3.6 24V and an output voltages ranges of 3.6 30V with current limit of 10mA, this voltages control module ensures efficient and stable voltages conversion while maintaining isolation between circuits. for electronics hobbyists, engineers, and 3D printing enthusiasts, this 8 channel voltages isolation board caters to users who require precise voltages management in projects, automation systems, or 3D printer accessories. This module in scenarios like driving highly power transistors, MOSFETs, or low power 24V relays, making for applications in 3D printing setups, industrial controls, or any systems needing isolated voltages conversion. With its ABS construction and frequency limitation of 4kHz for pulses signals, the PC817 optocoupler module provide dependable and safe solution for voltages control tasks, ensuring compatibility with various electronic devices without compromising performances. Specifications: Materials: ABS Size:84x38mm Package Includes: 2Pcs 817 Optocoupler 8-Way voltages Isolation Board note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.