
PL2303 USB to TTL Converter
The PL2303 USB to TTL Converter is a compact USB-to-serial adapter that lets your laptop talk to microcontrollers, GPS modules, and other UART devices through a normal USB port. While comparing the PL2303 price in Bangladesh with other USB-UART adapters, you will notice this one offers switchable 3.3V and 5V logic levels plus dependable Windows 10/11 driver support. Electronics students and makers buy the PL2303 converter in Bangladesh to upload sketches to Arduino Pro Mini, flash ESP-01 Wi-Fi modules, debug Raspberry Pi consoles, and read serial data from sensors and modems. Plug it into any USB port and the PL2303 chip enumerates as a virtual COM port — no external power supply is ever needed.
Key Features:
• Prolific PL2303 chip converts USB 2.0 to UART TTL serial
• Jumper-selectable 3.3V or 5V logic for safe connections to any board
• Virtual COM port on Windows 10/11, Windows 7, Linux, and macOS
• Programs Arduino Pro Mini, ESP-01, and other boards without onboard USB
• TX, RX, VCC, and GND pins broken out on a standard USB Type-A connector
• Powers the target board directly from the USB bus while programming
• Doubles as a serial console for Raspberry Pi, routers, and embedded Linux boards
Not sure it will work? Test your circuit free in Tekko Sim — on your phone, in Bangla or English.
| Category | Modules |
| Model no. | USB-TTL-PL2303 |
| Availability | In stock |
| In stock | 5 pcs |
| Delivery | Cash on Delivery, nationwide Bangladesh |
| Chip | Prolific PL2303 series USB-to-serial bridge |
| Interface | USB 2.0 full-speed to UART TTL |
| Logic Voltage | Selectable 3.3V or 5V via onboard jumper |
| Baud Rate | 75 bps up to 921,600 bps (chip revision dependent) |
| Data Bits / Parity / Stop Bits | 5-8 data bits, none/odd/even parity, 1-2 stop bits |
| Flow Control | None (TX/RX only) |
| Signals Broken Out | TXD, RXD, VCC, GND |
| Connector | USB Type-A male |
| Driver Support | Windows 10/11, Windows 7, Linux, macOS (virtual COM port) |
| Power Output | 5V line powered from USB bus for the target board |
| Applications | Firmware flashing, serial debugging, GPS/GSM module testing, console access |
| Compatible With | Arduino Pro Mini, ESP8266/ESP-01, ESP32, STM32, Raspberry Pi, GSM modules |