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SparkFun RJ45 MagJack Breakout

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Add an Ethernet jack to a prototype with this MagJack breakout. The connector comes soldered and includes magnetics, status LEDs and shielding, while the board exposes its signals for wiring. It provides a physical interface component for a suitable Ethernet design rather than a complete network controller or general-purpose unfiltered connector.

Before you buy

For Ethernet networks; check the controller, pin mapping and magnetics requirements before connecting the circuit.

SparkFun SKU: BOB-13021 · Category: Ethernet connector breakouts

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Official product specifications and documentation

EAR summary based on supplier documentation; this is not a hands-on review. Product identity rechecked during the October 25, 2026 sprint. Current SparkFun Originals eligibility was verified with the supplier’s Original: Yes filter during the October 25, 2026 sprint. Affiliate eligibility remains subject to SparkFun's program terms.