SparkFun Breadboard Power Supply Stick - 5V/3.3V (with Headers)
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Power a breadboard from a supply stick with selectable 5V or 3.3V output and headers. Set the output before connecting a load and check current and thermal limits.
Before you buy
Verify the exact configuration, electrical requirements and included parts in SparkFun documentation before ordering.
SparkFun SKU: PRT-21297 · Category: Special Categories
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Official product specifications and documentation
EAR summary based on supplier documentation; this is not a hands-on review. Product identity and SparkFun Originals listing membership checked October 26, 2026. Affiliate eligibility remains subject to SparkFun's program terms.