--- product_id: 530497202 title: "Industrial USB to RS485 Bidirectional Converter Module, Onboard Original CH343G and SP485EEN, Onboard TVS, Transmission Distance Up to 1.2km" brand: "coolwell" price: "VT6573" currency: VUV in_stock: true reviews_count: 2 category: "Coolwell" url: https://www.desertcart.vu/products/530497202-industrial-usb-to-rs485-bidirectional-converter-module-onboard-original-ch343g store_origin: VU region: Vanuatu --- # Lightning-proof TVS protection 3 LED status indicators 1.2km stable transmission range Industrial USB to RS485 Bidirectional Converter Module, Onboard Original CH343G and SP485EEN, Onboard TVS, Transmission Distance Up to 1.2km **Brand:** coolwell **Price:** VT6573 **Availability:** ✅ In Stock ## Summary > ⚡ Power your industrial network with unstoppable reliability! ## Quick Answers - **What is this?** Industrial USB to RS485 Bidirectional Converter Module, Onboard Original CH343G and SP485EEN, Onboard TVS, Transmission Distance Up to 1.2km by coolwell - **How much does it cost?** VT6573 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/530497202-industrial-usb-to-rs485-bidirectional-converter-module-onboard-original-ch343g) ## Best For - coolwell enthusiasts ## Why This Product - Trusted coolwell brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Status at a Glance:** Triple LED indicators keep you informed on power and data transmission status, minimizing downtime. - • **Instant Plug & Play:** Recognized immediately on Windows 10 with CH343G chipset and auto-installed drivers—no hassle, just work. - • **Rock-Solid Surge Defense:** Onboard TVS and resettable fuse shield your setup from voltage spikes and electrostatic shocks. - • **Extended Reach, No Limits:** Supports transmission distances up to 1.2 kilometers—perfect for sprawling industrial or smart office environments. - • **Seamless Bidirectional Flow:** Effortlessly convert USB to RS485 with fast, stable, and reliable communication for mission-critical tasks. ## Overview This Industrial USB to RS485 Bidirectional Converter Module by Coolwell features the original CH343G and SP485EEN chips, onboard TVS for lightning and electrostatic protection, and a resettable fuse for over-current safety. It supports fast, stable communication over distances up to 1.2km, includes 3 LED indicators for real-time status, and comes with a USB extension cable and screwdriver for easy installation—making it the go-to choice for professionals demanding robust serial communication. ## Description Features Support USB to RS485 bidirectional conversion Fast communication, stable and reliable, better compatibility Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance 3 LEDs for indicating the power and transceiver status Package include 1. USB TO RS485 (B) x1 2. USB-A male to female cable x1 3. Screwdriver x1 Resources available: https://www.waveshare.com/wiki/USB_TO_RS485_(B) Review: Great module for RS-485 functionality - Works great for PTZ camera and menu control. The connectors are solid and the stick feels fairly substantial. The included USB extender cable sets this apart as it doesn't have to remain stuck straight out of the back of the computer. Review: Works as advertised! - This connected right up to my Windows 10 computer and was recognized immediately as a CH343 in device manager. Drivers installed automatically and it works as intended. It even comes with a little screwdriver for connecting to the phoenix terminals and a USB-A extension cable. Very nice! ## Features - 3 LEDs for indicating the power and transceiver status - Fast communication, stable and reliable, better compatibility - Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic - Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B84TZTS4 | | Best Sellers Rank | #1,247 in Serial Adapters | | Customer Reviews | 4.7 4.7 out of 5 stars (3) | | Date First Available | July 30, 2022 | | Item Weight | 3.88 ounces | | Manufacturer | Coolwell | | Package Dimensions | 3.94 x 2.36 x 0.79 inches | ## Product Details - **Brand:** Coolwell - **Compatible Devices:** RS485 Devices - **Hardware Interface:** USB - **Material:** Plastic - **Special Feature:** LED Indication ## Images ![Industrial USB to RS485 Bidirectional Converter Module, Onboard Original CH343G and SP485EEN, Onboard TVS, Transmission Distance Up to 1.2km - Image 1](https://m.media-amazon.com/images/I/41wJxzjKPBL.jpg) ![Industrial USB to RS485 Bidirectional Converter Module, Onboard Original CH343G and SP485EEN, Onboard TVS, Transmission Distance Up to 1.2km - Image 2](https://m.media-amazon.com/images/I/41VYiQiDreL.jpg) ![Industrial USB to RS485 Bidirectional Converter Module, Onboard Original CH343G and SP485EEN, Onboard TVS, Transmission Distance Up to 1.2km - Image 3](https://m.media-amazon.com/images/I/51yQCfVbsLL.jpg) ![Industrial USB to RS485 Bidirectional Converter Module, Onboard Original CH343G and SP485EEN, Onboard TVS, Transmission Distance Up to 1.2km - Image 4](https://m.media-amazon.com/images/I/61fKxDsEKdL.jpg) ![Industrial USB to RS485 Bidirectional Converter Module, Onboard Original CH343G and SP485EEN, Onboard TVS, Transmission Distance Up to 1.2km - Image 5](https://m.media-amazon.com/images/I/61C9CDdqE0L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ Great module for RS-485 functionality *by R***X on June 22, 2023* Works great for PTZ camera and menu control. The connectors are solid and the stick feels fairly substantial. The included USB extender cable sets this apart as it doesn't have to remain stuck straight out of the back of the computer. ### ⭐⭐⭐⭐⭐ Works as advertised! *by B***. on June 23, 2023* This connected right up to my Windows 10 computer and was recognized immediately as a CH343 in device manager. Drivers installed automatically and it works as intended. It even comes with a little screwdriver for connecting to the phoenix terminals and a USB-A extension cable. Very nice! ## Frequently Bought Together - Coolwell Industrial USB to RS485 Bidirectional Converter Module, Onboard Original CH343G and SP485EEN, Onboard TVS, Transmission Distance Up to 1.2km - Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter with Original FT232RL Embedded Protection Circuits and Aluminium Alloy Enclosure for Industrial Control Equipments - USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection --- ## 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.vu/products/530497202-industrial-usb-to-rs485-bidirectional-converter-module-onboard-original-ch343g](https://www.desertcart.vu/products/530497202-industrial-usb-to-rs485-bidirectional-converter-module-onboard-original-ch343g) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-17*