ITEM NAME:RobotDyn NRF24L01 Socket Adapter, With Regulator 3.3V U9Q9 RobotDyn NRF24L01 Socket Adapter, With Regulator 3.3V U9Q9 This module enables you to use NRF24L01 type transceivers on 5V systems like Arduino. It regulates the 5V input to 3.3V output and incorporates bypass capacitors for reliable operation. Colour: Black material: plastic size:4*8*1.2CM Package Contents: 1*NRF24L01 Socket Adapter.This module enables you to use NRF24L01 type transceivers on 5V systems like Arduino. size:4 8 1.2CM.