2 PCS Breadboard Power Supply Module 3.3V/5V - great for Arduino (two items)Very cost-effective little power supply. Perfect for broadboard use. Fits manybreadboard sizes.SpecificationBreadboard power supply module, supplies 5V / 3.3 VFits standard width breadboardsInput voltage: 6.5-12 V (DC) or USB power supplyMaximum output current: < 700 ma