--- product_id: 803459272 title: "CP2102 USB to TTL Serial Adapter – USB 2.0 to 5Pin UART Converter Module with 3.3V/5V Output, STC Compatible, Includes Jumper Wires – for Arduino, ESP8266, STM32, DIY Projects (10-Pack)" brand: "hjhyul" price: "€ 57.81" currency: EUR in_stock: true reviews_count: 13 category: "Hjhyul" url: https://www.desertcart.hr/products/803459272-cp2102-usb-to-ttl-serial-adapter-usb-2-0-to store_origin: HR region: Croatia --- # CP2102 USB to TTL Serial Adapter – USB 2.0 to 5Pin UART Converter Module with 3.3V/5V Output, STC Compatible, Includes Jumper Wires – for Arduino, ESP8266, STM32, DIY Projects (10-Pack) **Brand:** hjhyul **Price:** € 57.81 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** CP2102 USB to TTL Serial Adapter – USB 2.0 to 5Pin UART Converter Module with 3.3V/5V Output, STC Compatible, Includes Jumper Wires – for Arduino, ESP8266, STM32, DIY Projects (10-Pack) by hjhyul - **How much does it cost?** € 57.81 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/803459272-cp2102-usb-to-ttl-serial-adapter-usb-2-0-to) ## Best For - hjhyul enthusiasts ## Why This Product - Trusted hjhyul brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Enhance your development and debugging experience with this CP2102 USB 2.0 to TTL UART 6-Pin Serial Converter Module, designed for reliable communication between your computer and microcontrollers (MCUs). Ideal for developers, hobbyists, and engineers working with Arduino, ESP8266, STM32, STC, and other embedded systems. Key Features: Reliable CP2102 Chipset: Built around the stable and trusted CP2102 chip, which automatically creates a virtual COM port after driver installation. Ensures consistent performance and compatibility with a wide range of systems. USB Powered with 3.3V/5V Output: The module draws power from the USB port and provides output pins for 3.3V (max 40mA) and 5V, along with GND, TXD, RXD, and RST. All signal lines use 3.3V TTL logic (positive logic), making it compatible with most 3.3V or 5V devices. Onboard Indicator LEDs: Includes three LEDs—power/status LED remains ON when the driver is installed correctly, while TX and RX LEDs flash during communication. The higher the baud rate, the lower the brightness, allowing for easy visual monitoring of transmission activity. Flexible Baud Rate & Communication Format: Supports baud rates from 300 bps to 1 Mbps, and various serial communication settings: Data bits: 5, 6, 7, or 8 Stop bits: 1, 1.5, or 2 Parity: None, Odd, Even, or Mark Buffer & Flow Control Support: Built-in byte receive buffer and 640-byte transmit buffer. Supports hardware flow control and X-ON/X-OFF software handshake. Supports USB suspend mode via the SUSPEND pin and broken line (disconnection) detection. TTL vs RS232 Logic Explanation: This module uses TTL logic (0V = logic “0”; +3.3V or +5V = logic “1”), which is positive logic. In contrast, RS232 uses inverted signals (−12V to −3V = logic “1”; +3V to +12V = logic “0”). Wide Operating System Compatibility: Fully compatible with Windows 98SE, 2000, XP, Vista, 7, 10, 11, Mac OS 9/X, and Linux kernel 2.4 and above. Industrial Temperature Range: Operates reliably between −40°C to +85°C, suitable for harsh environments and industrial use. Review: Low cost cable - Work good for interface between Cerbo GX USB input to Smart solar VE direct port Need only three wires to connect Tx ,Rx,Ground Review: Great adapter. - This item is as described. Shipping was fast. Quality is great. The 3pack was a good price. I was able to make a USB GPS Dongle with the USB to TTL adapter for my wifi pineapple pager. I used a ATGM336H GPS module and It fit perfectly in the USB sd card reader housing. I want to thank MacGyver for the idea and the Marine Corps for being able to adapt and overcoming this obstacle. ## Features - Stable & Trusted CP2102 Chipset – Built with the reliable CP2102 chipset for stable data transmission and consistent performance in embedded and serial communication projects. - Flexible Baud Rate Range – Supports a wide range of baud rates from 300 bps to 1.5 Mbps, meeting various data transmission needs for microcontrollers and development boards. - Plug-and-Play USB Connectivity – Easily connects your TTL serial devices to a computer via USB. No external power supply needed. Ideal for Arduino, ESP8266, STM32, STC, and more. - Standard Pin Configuration – Features USB Type-A male and TTL 5-pin female header (3.3V, RST, TXD, RXD, GND). Compatible with both 3.3V and 5V logic levels, ensuring broader hardware support. - Broad OS Compatibility – Works with Windows 98SE/2000/XP/Vista/7/10/11, Mac OS 9/X, and Linux 2.4+, making it a versatile solution for developers and DIY electronics enthusiasts. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0G615FJPZ | | Best Sellers Rank | #37 in Serial Adapters | | Brand | HJHYUL | | Compatible Devices | Devices using Windows, Mac OS, and Linux operating systems | | Connector Type | USB | | Customer Reviews | 4.6 out of 5 stars 57 Reviews | | Input Voltage | 5 Volts (DC) | | Manufacturer | HJHYUL | | Model Number | CP2102 | | Number of Items | 3 | | Number of Ports | 6 | | Unit Count | 1.0 Count | | Warranty Description | NO | ## Images ![CP2102 USB to TTL Serial Adapter – USB 2.0 to 5Pin UART Converter Module with 3.3V/5V Output, STC Compatible, Includes Jumper Wires – for Arduino, ESP8266, STM32, DIY Projects (10-Pack) - Image 1](https://m.media-amazon.com/images/I/71bDIgafECL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Low cost cable *by J***E on May 18, 2026* Work good for interface between Cerbo GX USB input to Smart solar VE direct port Need only three wires to connect Tx ,Rx,Ground ### ⭐⭐⭐⭐⭐ Great adapter. *by D***D on April 16, 2026* This item is as described. Shipping was fast. Quality is great. The 3pack was a good price. I was able to make a USB GPS Dongle with the USB to TTL adapter for my wifi pineapple pager. I used a ATGM336H GPS module and It fit perfectly in the USB sd card reader housing. I want to thank MacGyver for the idea and the Marine Corps for being able to adapt and overcoming this obstacle. ### ⭐⭐⭐⭐⭐ Worked perfectly *by E***R on April 20, 2026* Worked perfectly (Windows). Not much else to say. --- ## 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.hr/products/803459272-cp2102-usb-to-ttl-serial-adapter-usb-2-0-to](https://www.desertcart.hr/products/803459272-cp2102-usb-to-ttl-serial-adapter-usb-2-0-to) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-19*