{"product_id":"dsd-tech-sh-ur04a-4-channel-usb-powered-relay-module-for-pc-mac4ch","title":"DSD TECH SH-UR04A 4-Channel USB Powered Relay Module for PC \u0026 Mac(4CH)","description":"\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUSB Powered \u0026amp; Plug-and-Play: Connect directly to any USB port—no extra power supply required—for instant 4-channel relay control on Windows and Mac.\u003c\/li\u003e\n\u003cli\u003eReliable Serial Interface: Features Silicon Labs CP2102 chipset; install driver once to create a virtual COM port for stable, high-speed communication.\u003c\/li\u003e\n\u003cli\u003eSimple AT Command \u0026amp; Python Integration: Control each relay with ASCII-formatted AT commands; sample Python scripts included to jump-start your automation projects.\u003c\/li\u003e\n\u003cli\u003eWide Voltage Range \u0026amp; High Load Capacity: Safely switch AC 110–250 V or DC up to 30 V; supports up to 600 W per channel for industrial and home automation.\u003c\/li\u003e\n\u003cli\u003eAbout DSD TECH: Established in 2009, DSD TECH specializes in industrial connectivity solutions, delivering 80+ products (USB\/RS232\/UART\/RS485\/CAN) to 100,000+ global clients across automation and communication sectors. Every device comes with lifetime support and 1 year product replacement service.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFree shipping included. 30-day hassle-free returns.\u003c\/p\u003e","brand":"Belmont Warehouse","offers":[{"title":"Default Title","offer_id":43359073501393,"sku":"BW-B0FWQ71YS6","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/3123\/5793\/files\/61idwTTi27L._SL1500.jpg?v=1790997588","url":"https:\/\/belmontwarehouse.com\/products\/dsd-tech-sh-ur04a-4-channel-usb-powered-relay-module-for-pc-mac4ch","provider":"Belmont Warehouse","version":"1.0","type":"link"}