JBtek Breadboard Power Supply Module 3.3V/5V for Arduino Board Solderless Breadboard Product Name: Breadboard Power Supply Module ; Fit for: MB-102 Breadboard Input Voltage : DC 6.5-12V;Output Voltage : DC 3.3V 5V Package Content : 1 x JBtek Breadboard Power Supply Module Output Current: 700mA(Max); Total Size : 51 x 32 x 19mm/ 2" x 1.3" x 0.75" (L*W*H)