Features: 100% Brand new and high quality It is widely used in radio modification for phone flash for XBOX360 flash for GPS for vehicle detectionfor DVD flash hard disk repair set-top box upgrade It can be used to program for STC MCUfor MCUfor Renesas MCUSTM32 MCU N+-2EC MCU Specifications: Communication chip: domestic MAX3232 Port: TX RX VCC GND Working voltage:3.3V-5.5V Size : 32 x 30mm Weight:13 g Package weight:23 g Package Included: 1 x MAX3232 RS232 to TTL Serial Port Converter Module DB9 Connector MAX232 1 x Dupont cables(Random color)