This product is widely used in radio modifications, cell phone Flash, XBOX360 Flash detection, GPS, car, DVD Flash, HDD repair, set-top box upgrade. Can be used to download MCU types: STC single-chip microcomputer STM32 microcontroller NXP microcontroller Renesas MCU NEC MCU Communications IC: MAX3232 Working voltage: 3.3V-5.5V Interface: TX RX VCC GND This product is widely used in radio modifications, cell phone Flash, XBOX360 Flash detection, GPS, car, DVD Flash, HDD repair, set-top box upgrade. Can be used to download MCU types: STC single-chip microcomputer STM32 microcontroller NXP microcontroller Renesas MCU NEC MCU Communications IC: MAX3232 Working voltage: 3.3V-5.5V Interface: TX RX VCC GND This product is widely used in radio modifications, cell phone Flash, XBOX360 Flash detection, GPS, car, DVD Flash, HDD repair, set-top box upgrade. Can be used to download MCU types: STC single-chip microcomputer STM32 microcontroller NXP microcontroller Renesas MCU NEC MCU Communications IC: MAX3232 Working voltage: 3.3V-5.5V Interface: TX RX VCC GND