SparkFun Ethernet Adapter for Teensy
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Add an Ethernet connection to a Teensy 4.1 project with this assembled adapter board. It combines an RJ45 connector, Ethernet transformer and header, reducing the assembly required compared with the multi-part kit. The adapter remains one component of the connection, with a host board, ribbon cable and additional header required separately.
Before you buy
Requires a Teensy4.1, six-pin ribbon cable and additional2×3maleheader; review the remaining soldering requirements.
SparkFun SKU: PRT-29920 · Category: Ethernet interface adapters
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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.