ITEM NAME:MB102 micro usb interface breadboard power supply module 2 channel board JC,a Voltage: DC 7-12V Size: 5.5*3.5*1.5cm Package Included: 1pcs MB102 DC 7-12V Micro USB Interface Breadboard Power Supply Module.It is one one necessary products for your breadboard. The product has high accuracy, more safe for your use. Size: 5.5 3.5 1.5cm. Use the high quality material, more durable for your daily use.