--- product_id: 81856783 title: "HiLetgo 5pcs USB to Serial USB to TTL CH340 Module with STC Microcontroller Download Adapter" brand: "hiletgo" price: "¥3045" currency: JPY in_stock: true reviews_count: 8 category: "Hi Letgo" url: https://www.desertcart.jp/products/81856783-hiletgo-5pcs-usb-to-serial-usb-to-ttl-ch340-module store_origin: JP region: Japan --- # Selectable 3.3V/5V output voltage for versatile use LED indicators for power, TXD, and RXD status CH340G chip for seamless USB to TTL conversion HiLetgo 5pcs USB to Serial USB to TTL CH340 Module with STC Microcontroller Download Adapter **Brand:** hiletgo **Price:** ¥3045 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with precision and style — don’t get left behind! ## Quick Answers - **What is this?** HiLetgo 5pcs USB to Serial USB to TTL CH340 Module with STC Microcontroller Download Adapter by hiletgo - **How much does it cost?** ¥3045 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/81856783-hiletgo-5pcs-usb-to-serial-usb-to-ttl-ch340-module) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Powerhouse:** Slim 33mm x 16mm footprint fits effortlessly into any workspace or development kit without clutter. - • **Durable & Stylish Pins:** Premium yellow pins combine longevity with a sleek look, standing out from generic black-market modules. - • **Plug & Play Reliability:** Original CH340G chip ensures flawless compatibility across all MCU series without driver headaches. - • **Visual Workflow Control:** Integrated PWR, TXD, and RXD LEDs give you real-time status feedback—no guesswork, no extra tools needed. - • **Flexible Voltage Selection:** Easily switch between 3.3V and 5V output to match your project’s power needs safely and efficiently. ## Overview The HiLetgo 5pcs USB to Serial TTL CH340 Module is a compact, high-quality adapter featuring the official CH340G chip for seamless USB to TTL/RS232 communication. Designed for flawless compatibility with all MCU series, it includes intuitive LED indicators and selectable 3.3V/5V output, making it an essential tool for developers and tech professionals seeking reliable, plug-and-play serial communication. ## Description USB to TTL CH340 Module with STC Microcontroller Download Cable USB to Serial CH340 Module USB to TTL USB to RS232 STC downloader Perfectly compatible with all Series MCU, STC will not happen downloading problem due to different driver. 1. New original CH340G chips which recommended by STC official, much better than PL2303. The chips are USB to TTL chips, and will not appear incompatibilities due to different driver or caused by different computers. 2. High-quality, High-grade yellow pin, pin durable than the black market, beautiful; 3. Not only has the power light PWR, there TXD and RXD indicator, whether the product is easy to learn and intuitive to work in the absence of the instrument in the case; 4. The output transposon straight needle and looper optional; 5. 3 V3 and 5V by a short circuit risk selection; 6. Dimension: 33mm * 16mm; Review: Worked natively on Linux to unbrick a Belkin RT3200 / Linksys E8450 - Worked great to unbrick a Belkin RT3200 / Linksys E8450 affected by OKD (OpenWRT kiss of death) The included cables have female and male ends and so did not directly connect into the JST PH connector (also male). I inserted the male ends from two cables together and then used the combined cable to connect the CH340 to the router. The ends connected to the JST PH connector were a loose fit. Review: Good - Great item. Worked good. Good quality! ## Features - HiLetgo USB to TTL CH340 Module - STC downloader - CH340 Module - USB to TTL - USB to RS232 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00LZV1G6K | | Best Sellers Rank | #2,225 in USB Cables | | Brand | HiLetgo | | Color | Black | | Compatible Devices | Personal Computer | | Connector Type | USB | | Customer Reviews | 4.4 out of 5 stars 238 Reviews | | Finish | Abs | | Finish Type | Abs | | Input Voltage | 5 Volts | | Item Weight | 0.02 Kilograms | | Manufacturer | HiLetgo | | Mfr Part Number | 3-01-0459 | | Model Number | 3-01-0459 | | Number of Items | 5 | | Number of Ports | 1 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Smart Home Compatibility | Not Smart Home Compatible | | UPC | 702082656754 | | Unit Count | 5.0 Count | ## Product Details - **Brand:** HiLetgo - **Color:** Black - **Compatible Devices:** Personal Computer - **Connector Type:** USB - **Finish Type:** Abs ## Images ![HiLetgo 5pcs USB to Serial USB to TTL CH340 Module with STC Microcontroller Download Adapter - Image 1](https://m.media-amazon.com/images/I/61CqAYIgtyL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked natively on Linux to unbrick a Belkin RT3200 / Linksys E8450 *by R***M on November 11, 2025* Worked great to unbrick a Belkin RT3200 / Linksys E8450 affected by OKD (OpenWRT kiss of death) The included cables have female and male ends and so did not directly connect into the JST PH connector (also male). I inserted the male ends from two cables together and then used the combined cable to connect the CH340 to the router. The ends connected to the JST PH connector were a loose fit. ### ⭐⭐⭐⭐⭐ Good *by L***Y on April 27, 2026* Great item. Worked good. Good quality! ### ⭐⭐⭐⭐⭐ It worked to mate rxtxlite to my uSDX+ V2 *by G***H on August 29, 2023* I used one of these to adapt my cellphone with the rxtxlite android app to my uSDX+ V2 qrp transceiver. Everything went together easily, and worked perfectly. Now I can change bands, modes, and adjust frequency with the phone instead of the buttons on the radio. Cheap and easy to do! I would recommend. ## Frequently Bought Together - HiLetgo 5pcs USB to Serial USB to TTL CH340 Module with STC Microcontroller Download Adapter - GenBasic 40 Piece Female to Female Jumper Wires (4 Inch) - Monoprice 3-Feet USB A to mini-B 5pin 28/28AWG Cable (103896) Black --- ## 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.jp/products/81856783-hiletgo-5pcs-usb-to-serial-usb-to-ttl-ch340-module](https://www.desertcart.jp/products/81856783-hiletgo-5pcs-usb-to-serial-usb-to-ttl-ch340-module) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-06-14*