Features 1、Contact capacity 10A 250 V with optocoupler protection. 2、The on‑board power module does not require an external power supply. 3、The port controller I / O is active low. 4、Can be used as MCU development board module, appliance control, extended output, etc. 5、With excellent industry optocoupler isolation anti‑interference performance and stability. Specification Features: 1. Contact capacity 10A 250 V with optocoupler protection. 2. The on-board power module does not require an external power supply. 3. The port controller I / O is active low. 4. Can be used as MCU development board module, appliance control, extended output, etc. 5. With excellent industry optocoupler isolation anti-interference performance and stability. 6. Each common relay is independent and easy to use to access different signals, with port normally closed/open and an action indicator. 7. User-friendly interface design, all interfaces can be drawn directly through the wiring terminal, very convenient. Specification: Package weight: Approx. 209g/7.4oz Package List: 1 x 16 Channel Relay Module Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List