What are the supported link speeds for this network adapter?

The network adapter supports auto-negotiation between 5G, 2.5G, 1G, 100M, and 10M link speeds.

What type of chip does the StarTech 1-Port 5G Gigabit PCIe Network Adapter Card use?

The adapter card uses the Realtek RTL8126 chip.

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Main image of StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

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Alt view image 4 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 5 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 6 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 7 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 8 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 9 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 10 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 11 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 12 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 13 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 14 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 15 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 16 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

Alt view image 17 of 17 - StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

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StarTech 1-Port 5G Gigabit PCIe Network Adapter Card, 5G/2.5G/1G/100M/10M PCI Express LAN Card, Realtek RTL8126, Windows and Linux, TAA Compliant

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TAA-Compliant Gigabit Network Card with Realtek RTL8126 chip adds a 5G ethernet interface to a desktop/server; Features link speed/activity LED indicators; Supports auto-negotiation between 5G/2.5G/1G/100M/10M; WoL/VLAN/9K Jumbo Frame support

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Interfaces & Connections:

External Ports 1 - RJ-45; Host Connectors 1 - PCI Express x1.

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First Listed on Newegg	January 19, 2026

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Item#: 9SIBSWCKS05700