The MB102 is a breadboard power supply module manufactured by the YwRobot Corporation in China. This module has the marking 545043 and MB V2 on the printed circuit board ( pieceB). It provides dual 5 V and 3.3 V power rails and has a multi-purpose female USB socket.
Input Voltage: 6.5-12 V (DC) or USB power supply
Output Voltage: 3.3V or 5V can switch over
Maximum Output Current: <700 ma
Fluctuation two road independent control, can switch over to 0 V, 3.3 V, 5 V
On-board two groups of 3.3V, 5V DC output plug pin, convenient external lead use