PCB Size:3.55"x2" (90.17x50.8 mm), Package content: PCB x 10 , MicroUSB Connector x 10 , M2 Copper Column x 10.
The PCB design is flexible and innovative, including some common chip PCB footprints, allowing you to design and connect circuits more easily.
A microUSB connector is included to simplify the design of the power module and make your circuit compatible with USB DC 5V power supplies.
Using Immersion Gold(ENIG) technology, it can prevent oxidation, it is easier to weld than Gold Plating and will not cause bad welding. The stress is more easily to control.