HJHYUL
CP2102 USB to TTL Serial Adapter Cable, USB 2.0 to UART Converter 4 Pin (TXD RXD GND 5V), 3ft/95cm Long, 3.3V TTL Signal for Arduino, Raspberry Pi, ESP8266, ESP32
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
Bottom line: The CP2102 USB to TTL Serial Adapter Cable, USB 2.0 to UART Converter 4 Pin (TXD RXD GND 5V), 3ft/95cm Long, 3.3V TTL Signal for Arduino, Raspberry Pi, ESP8266, ESP32 is a category leader on buyer feedback in the cables & connectors category, priced around $9.99, rated 4.8★ across 14 verified Amazon reviews. A confident buy for most shoppers in this category.
Enhance your development and debugging experience with this CP2102 USB to TTL Serial Adapter Cable, designed for stable and efficient communication between your computer and microcontrollers.This upgraded version features a 3ft/95cm extended cable, providing greater flexibility when working with embedded systems, industrial equipment or hard-to-reach interfaces.Built with a reliable CP2102 chipset, the adapter ensures smooth data transmission and automatic virtual COM port recognition after driver installation. It is widely compatible with development boards such as Arduino, ESP8266, ESP32…
SpecPicks Verdict
SpecPicks classifies CP2102 USB to TTL Serial Adapter Cable, USB 2.0 to UART Converter 4… as a category leader on buyer feedback in the cables & connectors category, based on 14 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. HJHYUL's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for cables & connectors of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.8★ average across customer reviews
- ✓ Backed by HJHYUL's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Stable & Reliable CP2102 Chipset - Built with the trusted CP2102 chipset, ensuring stable data transmission and consistent performance. Supports 3.3V TTL logic level communication, making it suitable for most modern microcontroller systems.
- Extra Long 3ft/95cm Cable – More Flexible Than Standard Short Cables - Upgraded with a 3ft/95cm extended cable, providing greater flexibility than standard short cables. Perfect for hard-to-reach ports, complex setups and bench testing environments.
- Simplified 4-Wire Interface for Easy Wiring - Designed with a 4-pin configuration (TXD, RXD, VCC, GND), making connections faster, cleaner and less error-prone compared to traditional multi-pin modules.
- Plug and Play USB to TTL Adapter Cable - Easily connect TTL serial devices to your computer via USB without external power supply. Ideal for Arduino, ESP8266, ESP32, STM32 and other microcontroller platforms.
- Wide Compatibility for Development & Debugging - Provides stable 5V power output with 3.3V TTL signal level communication, ensuring reliable performance with Arduino, Raspberry Pi, ESP8266, ESP32 and other development boards.
Full Specifications
| Brand | HJHYUL |
|---|---|
| Unit Count | 1.0 Count |
| Connectivity | USB |
| Connector Type | USB |
| Mfr Part Number | CP2102 |
| Number of Items | 1 |
| Compatible Devices | Devices using Windows, Mac OS, and Linux operating systems |
| Warranty Description | NO |
Ready to buy?
CP2102 USB to TTL Serial Adapter Cable, USB 2.0 to UART Converter 4 Pin (TXD RXD GND 5V), 3ft/95cm Long, 3.3V TTL Signal for Arduino, Raspberry Pi, ESP8266, ESP32 is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
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