Check the listing for details. 2Pcs 4 Channel Relay Shield 5V Module Four Way Channel Relay Control Board Ex.... Condition: New. Listed at 18.87 USD. Welcome to our stores! Special Offers Just for You! We guarantee you will be satisfied. 2Pcs 4 Channel Relay Shield 5V Module Four Way Channel Relay Control Board Expansion Board Image Gallery Product Information 5V DC relay, which relay1 behalf of the 1st relay , the other and so on Power Interface : 5V DC power interface Indicator: four lights are red when the relay is driven high , the corresponding indicator will light up Relay Terminals: Terminal high-power , high-current high voltage can be connected to the device The 1st foot ( i.e. NOx) is a normally open pin , NCx pin is normally closed , COMx is common when the relay is driven , NOx and COMx open between two pins , NCx and COMx connection ; When the relay (x) control signal pin is high drive relays , NOx and COMx connection open between NCx and COMx. Package ： 2 x 5V 4 channel relay shield Key Features High drive (5V or 3.3V) normally open contact closure, M3 screw positioning holes for easy installation Standard for shield interfaces and shape can continue to stack other expansion boards Onboard relay indicator (red) 5V relay module is a small current signal control power equipment commonly used electronic module, enabling high-power single-chip control devices are widely used in SCM system to make smart home project; and can be directly plugged into the compatible the use of various types of motherboards, eliminating the patch cable troubles. Note: When using the board connected to it, if USB interface is extremely high, should avoid green terminals are shorted its shell. Thank you for shopping with us! Contact Us 📧 For any questions, please reach out via the eBay messaging system. We aim to respond within 24 hours. Payment Methods 💳 We accept PayPal, credit cards, and other eBay-supported payment methods. Ensure your payment details are up-to-date to avoid any delays. Shipping Information Your item will be shipped to the address on your eBay account. Please verify your address before completing the purchase. Shipping usually takes 3-7 business days. In case of delays, please allow an additional 2-3 business days due to postal service issues or technical problems. We use reliable shipping services such as UPS, FedEx, and USPS. Shipping is only available to the 48 contiguous states. We do not ship to Alaska, Hawaii, US territories, APO/FPO addresses, or PO Boxes. Local pickups are not available. If there are any issues with your delivery, please contact us promptly. Your Feedback 🌟 We value your feedback and aim to earn your trust. If you're not satisfied with your purchase, please contact us and we'll work to resolve the issue. Return Policy - We offer a 30-day return policy. - If the item is defective or you are not satisfied, contact us for a replacement or refund. - All returns must be sent to the address provided upon contacting us.