Features 1.100% brand new and high quality. 2.USB interface Multifunction DC/DC 5V to 3.3V Buck Module. 3.Input DC 4.5‑7V(USB input OR 2.54 Pin input). 4.Output: 3.3 V,800 mA (load current can't more than 800 mA). 5.Application: for raspberry pi/banana pi/esp8266, for MEGA2560 DUE, for AVR Atmel PIC STM32 C8051 MSP430. Specification Features: 100% brand new and high quality USB interface Multifunction DC/DC 5V to 3.3V Buck Module Input DC 4.5-7V(USB input OR 2.54 Pin input) Output: 3.3 V,800 mA (load current can't more than 800 mA) 3 functions : USB to 3.3V;USB to 5V(5V to 5V);5V to 3.3V Application: for raspberry pi/banana pi/esp8266, for MEGA2560 DUE, for AVR Atmel PIC STM32 C8051 MSP430 Zigbee CC2530, Wireless module : Nrf24l01 Nrf24lE1 CC1101 CC2500 SI4432 SI4463, for FPGA/CPLD:Altera EPM240/EPM570/EP4CE6; Xilinx XC2C64A,Wireless communication equipment Specification: Model:CE009 Type:Step-Down Module Weight: Approx.5g/0.2oz Package list: 1 x Step-Down Module Package List