GigaPlus
GiGaPlus 5Gb PCIe Network Card Realtek RTL8126 Controller
Bottom line: The GiGaPlus 5Gb PCIe Network Card Realtek RTL8126 Controller ($29.59 on Amazon as of 2026-10-06): Realtek RTL8126 controller delivers full 5Gb/s over standard RJ45; main trade-off: PCIe-only card — incompatible with legacy PCI slots.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Realtek RTL8126 controller delivers full 5Gb/s over standard RJ45
- ✓ Auto-negotiates 5G/2.5G/1G/100M for backward-compatible drops
- ✓ Wake-on-LAN support for remote power-on
- ✓ Ships with full-height and low-profile brackets for slim cases
- ✓ Broad OS support: Windows 7-11, Windows Server, and Linux
Cons
- ✗ PCIe-only card — incompatible with legacy PCI slots
- ✗ Tops out at 5Gb; no 10GbE headroom
- ✗ Full speed requires a 5GBASE-T switch or router
- ✗ Occupies a PCIe slot unavailable on many mini-PCs/laptops
SpecPicks Verdict
SpecPicks scored GiGaPlus 5Gb PCIe Network Card Realtek RTL8126 Controller using a rating × review-volume × price-fit model applied to published specs and reviews across the retro networking cards category. GigaPlus's retro networking cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for retro networking cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- 🌐5G High Speed: This 5G Ethernet card uses the Realtek RTL8126 controller, which can increase the Ethernet speed to 5Gb/s. Ensure the stability of Internet access and local data transmission, effectively prevent packet loss, and improve server stability. Support network wake-up function.
- 🌐Network Connection: This 5G BASE-T PCIe is equipped with an independent Ethernet port, which can convert the PCIe slot (X1/X4/X8/16) into a 5G RJ-45 Ethernet port. Note: Only suitable for PCIe ports, not for PCI slots.
- 🌐Wide Compatibility: Compatible with Windows 7/8/8.1/10/11 and Linux. Seamlessly backward compatible with 5Gbps/2.5Gbps/1Gbps/100Mbps, it can automatically negotiate high-speed and low-speed connections, support multiple device connections, and meet the diverse operating system needs of your data center or home use.
- 🌐Adaptability and Heat Dissipation: Comes with standard brackets and slim brackets for different applications such as desktops, workstations, servers, and mini-tower computers. Excellent heat dissipation performance can quickly reduce the temperature and keep the stability of network transmission.
- 🌐Customer Service: Each GigaPlus 5G NIC undergoes rigorous reliability, quality, and performance testing. We provide lifetime technical support for the entire product.
Full Specifications
| Brand | GigaPlus |
|---|---|
| Weight | 5g |
| Model Number | GP-5G NIC |
| Compatibility | Linux |
| Built-In Media | 5G NIC |
| Number of Items | 1 |
| Compatible Devices | Desktop |
| Data Link Protocol | Ethernet |
| Data Transfer Rate | 5 Gigabits Per Second |
| Hardware Interface | PCI Express x8 |
| Warranty Description | 1 year warranty |
| 🌐Customer Service | Each GigaPlus 5G NIC undergoes rigorous reliability, quality, and performance testing. We provide lifetime technical support for the entire product. |
| Full listing title | GiGaPlus 5Gb PCIe Network Card Realtek RTL8126 Controller, 5Gbe RJ45 Port NIC Card Support WOL, 5Gb Base-T Ethernet Adapter for Windows10/11/Windows Server/Linux |
Ready to buy?
GiGaPlus 5Gb PCIe Network Card Realtek RTL8126 Controller, 5Gbe RJ45 Port NIC Card Support WOL, 5Gb Base-T Ethernet Adapter for Windows10/11/Windows Server/Linux is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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