--- product_id: 611526783 title: "USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent Home" brand: "jessinie" price: "€ 19.14" currency: EUR in_stock: true reviews_count: 8 category: "Jessinie" url: https://www.desertcart.be/products/611526783-usb-serial-port-control-relay-module-sturdy-durable-lightweight-usb store_origin: BE region: Belgium --- # Overcurrent & diode protection Plug & play USB CH340 chip 10A high-power relay USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent Home **Brand:** jessinie **Price:** € 19.14 **Availability:** ✅ In Stock ## Summary > 🔗 Command your smart space with effortless USB power control! ## Quick Answers - **What is this?** USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent Home by jessinie - **How much does it cost?** € 19.14 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/611526783-usb-serial-port-control-relay-module-sturdy-durable-lightweight-usb) ## Best For - jessinie enthusiasts ## Why This Product - Trusted jessinie brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless USB Connectivity:** CH340 USB chip offers driver-free, plug-and-play operation for instant setup. - • **Powerful 10A Relay Control:** Handles up to 250VAC/30VDC with a robust 100,000-cycle lifespan for relentless reliability. - • **Real-Time Status Indicators:** Dual LEDs keep you informed of power and relay status at a glance. - • **Smart Overcurrent Protection:** Built-in safeguards prevent damage, ensuring your devices stay safe and sound. - • **Precision Serial Command Control:** Use standard serial debugging software to effortlessly automate your relay switch. ## Overview The LCUS-1 USB Serial Port Control Relay Module features a durable 10A relay capable of switching 250VAC/30VDC loads with a lifespan of 100,000 cycles. It integrates a high-performance microcontroller and a CH340 USB-to-serial chip for driver-free, plug-and-play connectivity. Equipped with overcurrent and diode protection, plus LED indicators, it offers reliable, intelligent control via serial commands for seamless automation in smart home or industrial applications. ## Description Product description Protection function: The relay module has overcurrent protection and relay diode freewheeling protection function Controller chip: on-board high-performance micro-control chip onboard CH340 USB control chip, without any driver, plug and play, easy to use Specification The LCUS-1 USB relay module is equipped with a USB to serial port chip with stable performance and a microcontroller. It can use serial port debugging software to send serial port instructions at the computer end to control the opening and closing of the 1-way relay. Core Features Relay: on-board 5V, 10A/250VAC, 10A/30VSC relay, with long service life and can be continuously closed for 100000 times LED indicator: onboard power LED indicator and relay status LED indicator Usage Method Step 1: Plug the USB relay module into the computer and install the driver of the CH340 USB to the serial port chip Step 2: Open the serial port debugging software such as STC-ISP and SSCOM32, and select the baud rate of 9600; Send A0 01 01 A2 in hexadecimal (hex) to open the relay; send A0 01 00 A1 in hexadecimal (hex) to close the relay, and can be sent manually or automatically Is this plug-and-play? Do I need to install drivers? Yes, it's plug-and-play on most modern systems like Windows 10/11 and macOS, thanks to the built-in CH340 chip. No separate driver installation is typically required. Is this plug-and-play? Do I need to install drivers? Yes, it's plug-and-play on most modern systems like Windows 10/11 and macOS, thanks to the built-in CH340 chip. No separate driver installation is typically required. How do I control the relay from my computer? Use serial port debugging software (e.g., SSCOM32) set to 9600 baud rate. Send the hex command A0 01 01 A2 to turn the relay ON and A0 01 00 A1 to turn it OFF. How do I control the relay from my computer? Use serial port debugging software (e.g., SSCOM32) set to 9600 baud rate. Send the hex command A0 01 01 A2 to turn the relay ON and A0 01 00 A1 to turn it OFF. What safety protections does this module have? It features overcurrent protection to prevent circuit damage and a freewheeling diode for relay coil protection, safeguarding both the module and your connected devices. What safety protections does this module have? It features overcurrent protection to prevent circuit damage and a freewheeling diode for relay coil protection, safeguarding both the module and your connected devices. What is the relay's specification and lifespan? It uses a robust 5V relay rated for 10A/250VAC or 10A/30VDC. It has a long service life and can be operated continuously for up to 100,000 cycles. What is the relay's specification and lifespan? It uses a robust 5V relay rated for 10A/250VAC or 10A/30VDC. It has a long service life and can be operated continuously for up to 100,000 cycles. What are the typical applications for this module? Ideal for smart home automation, DIY projects, and light industrial control, allowing you to wirelessly switch appliances/lights via your computer's USB port. What are the typical applications for this module? Ideal for smart home automation, DIY projects, and light industrial control, allowing you to wirelessly switch appliances/lights via your computer's USB port. Electronic OK Wire & Solder Wire 8-Color Wrapping Wire 30 Gauge 250M OK Wire 63-37 Tin Solder Wire ## Features - The LCUS-1 USB relay module is equipped with a USB to serial port chip with stable performance and a microcontroller. It can use serial port debugging software to send serial port instructions at the computer end to control the opening and closing of the 1-way relay. - Protection function: The relay module has overcurrent protection and relay diode freewheeling protection function - Relay: on-board 5V, 10A/250VAC, 10A/30VSC relay, with long service life and can be continuously closed for 100000 times - LED indicator: onboard power LED indicator and relay status LED indicator - Controller chip: on-board high-performance micro-control chip onboard CH340 USB control chip, without any driver, plug and play, easy to use ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BXDNNJ8K | | Best Sellers Rank | #125,612 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #22 in Home Automation Modules | | Brand | JESSINIE | | Brand Name | JESSINIE | | Coil Resistance | 10 Ohms | | Coil Voltage | 5 Volts | | Connector Type | Usb | | Contact Current Rating | 10 Amps | | Contact Material | Silver | | Contact Type | Normally Open | | Current Rating | 10 Amps | | Customer Reviews | 4.0 out of 5 stars 35 Reviews | | Manufacturer | JESSINIE | | Maximum Switching Current | 10 Amps | | Maximum Switching Voltage | 250 Volts | | Minimum Switching Voltage | 30 Volts (DC) | | Mounting Type | Plug In Mount | | Number of Terminals | 2 | | Operation Mode | Automatic | | Part Number | 64278 | | Wattage | 2.5 watts | ## Product Details - **Connector Type:** Usb - **Contact Material:** Silver - **Contact Type:** Normally Open - **Current Rating:** 10 Amps - **Mounting Type:** Plug In Mount ## Images ![USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent Home - Image 1](https://m.media-amazon.com/images/I/51Xs+8r1lJL.jpg) ![USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent Home - Image 2](https://m.media-amazon.com/images/I/71hVHlIDkLL.jpg) ![USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent Home - Image 3](https://m.media-amazon.com/images/I/71WGPC7KkLL.jpg) ![USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent Home - Image 4](https://m.media-amazon.com/images/I/71UEtdLuwFL.jpg) ![USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent Home - Image 5](https://m.media-amazon.com/images/I/41taNQ83tNL.jpg) ## Questions & Answers **Q: Is this plug-and-play? Do I need to install drivers?** A: Yes, it's plug-and-play on most modern systems like Windows 10/11 and macOS, thanks to the built-in CH340 chip. No separate driver installation is typically required. **Q: How do I control the relay from my computer?** A: Use serial port debugging software (e.g., SSCOM32) set to 9600 baud rate. Send the hex command A0 01 01 A2 to turn the relay ON and A0 01 00 A1 to turn it OFF. **Q: What safety protections does this module have?** A: It features overcurrent protection to prevent circuit damage and a freewheeling diode for relay coil protection, safeguarding both the module and your connected devices. **Q: What is the relay's specification and lifespan?** A: It uses a robust 5V relay rated for 10A/250VAC or 10A/30VDC. It has a long service life and can be operated continuously for up to 100,000 cycles. **Q: What are the typical applications for this module?** A: Ideal for smart home automation, DIY projects, and light industrial control, allowing you to wirelessly switch appliances/lights via your computer's USB port. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by K***M on July 28, 2025* ### ⭐⭐⭐⭐⭐ Review *by M***K on March 15, 2026* ### ⭐⭐ Review *by S***. on December 23, 2025* ## Frequently Bought Together - JESSINIE USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent Home - DSD TECH SH-UR01A USB Relay Controller for Computer and Laptop(1CH) - Electromagnetic Power Relay, 8-Pin 10 AMP 24V DC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY5NJ 2PCS [Applicable for DIN Rail System] --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/611526783-usb-serial-port-control-relay-module-sturdy-durable-lightweight-usb](https://www.desertcart.be/products/611526783-usb-serial-port-control-relay-module-sturdy-durable-lightweight-usb) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-05-09*