Hardkernl NetCard 3 is an expansion card with four 5Gbps Ethernet ports designed for the ODROID-H3 and ODROID-H4 SBCs and adding to the two 2.5GbE ports on the Intel Jasper Lake and Alder Lake-N single board computers. It follows the H2 Net Card with four 2.5GbE ports introduced in 2021 for the ODROID-H2, and tested by Ian with the ODROID-H3+ SBC in 2023. Hardkernel ended up selling more than expected, so they designed the Netcard 3 with 5GbE ports as an upgrade. It remains to be seen whether 5Gbps networking will be as popular as 2.5GbE or users will prefer moving to 10GbE hardware instead… NetCard 3 specifications: 4x 5Gbps Ethernet ports via RealTek RTL8126 5GbE controllers. M.2 edge connector with PCIe Gen3 x4 signaling Cooling with a long heatsink on RTL8126 controllers Compatible with ODROID-H3/H3+ and ODROID-H4/H4+ only, and not earlier ODROID-H2/H2+ boards You may need to flash a [...]

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The NetCard 3 is an add-on network expansion card designed exclusively for the ODROID-H3 and H4 series, offering four high-speed 5GbE Ethernet ports. Maintaining the same size and mounting method as previous NetCard versions, it integrates seamlessly with compatible ODROID boards while delivering improved network performance. This expansion card is built around four Realtek RTL8126 […]