MAX3232 RS232 Serial Port To TTL Converter Module DB9 Connector 5V RS232 to TTL + Female Serial TTL + serial modules / Brush board 
This module can be used to serial port of microcontroller module expand DVD, router, hard drive and other equipment to upgrade.
It is used in radio modification, phone flash, XBOX360 flash, GPS, vehicle detection DVD flash, hard disk repair set-top box upgrade.
It can be used to program STC MCU, NXP MCU, Renesas MCU, STM32 MCU, N+-2EC MCU
Specification:
- Communication chip: domestic MAX3232
- WorkingVoltage: 3.3V-5.5V
- Port: TX RX VCC GND
- Matched RS232 UART extension line
- Size: approx. 4.5 x 3cm (L*W)
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