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Wide Voltage & Practical Baud Rate – Works with 3.3V and 5V logic (Arduino, STM32, ESP8266, Raspberry Pi Pico). For reliable communication, we recommend ≤230400 baud – this covers 99% of firmware download, serial monitor, and IoT debugging tasks. No need for unstable ultra-high speeds.
USB 2.0 Full Speed (12Mbps) Interface – The USB side is never the bottleneck. The UART side supports up to 1.5Mbps theoretically, but stable real‑world performance is guaranteed at 230400 baud and below – same as most CH340 modules on the market.
Hardware Flow Control (RTS/CTS) – Prevents data loss even at 230400 baud when transferring large files or streaming sensor data. Many cheap CH340 modules omit this feature; ours keeps your communication rock‑solid.
640‑Byte FIFO Buffers – Both RX and TX buffers prevent overflow during continuous data exchange. Works out of the box with Windows (98/ME/2000/XP/Vista/7/8/10/11), macOS, and Linux (kernel 2.4+). No extra driver hassle.
Cost‑Effective for Real‑World Use – Why pay 3‑5x more for a module that claims 921600 baud, which you will never use in typical Arduino/STM32 projects? Our module delivers proven stability at 230400 baud – the sweet spot for developers and students. If you need insane speed, buy an FT232; otherwise, this is your best value.

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📌 About Baud Rate – What You Need to Know This CH340G module is capable of up to 1.5 Mbps (chip specification). However, based on real‑world testing and user feedback, the highest baud rate that works flawlessly for 100% of customers is 230400 baud For Arduino IDE serial monitor, ESP8266/ESP32 upload, STM32 flash, 3D printer firmware updates – baud rates of 115200 or 230400 are standard. Higher rates like 500k, 921k, or 1.5M often fail due to cable quality, USB hub interference, or driver latency – this is true for all CH340 modules, not just ours.

مرحبًا،

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2 حزمة محول USB إلى TTL مع كابل 1 متر و10 مقاطع اختبار - CH340G، ثابت عند 230400 باود لـ Arduino، ESP8266، برمجة AVR

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