At Computex 2025 (May 2025), Realtek introduced RTL8127, a low-power, low-cost 10Gbps networking controller for PCIe and M.2 cards. Now we see those are starting to appear in both PCIe cards and M.2 modules. Designed as an affordable alternative to 10GbE solutions like Aquantia’s AQC107, it is designed for desktops, servers, and embedded platforms that require faster networking without the high cost and power draw of traditional NICs.
Auvidea M20E M.2 10GbE module
The Auvidea M20E is a compact M.2 Key E (2230/2242) expansion card that features 10 Gigabit Ethernet connectivity to compatible platforms such as NVIDIA Jetson Orin NX/AGX and other systems. It is designed for applications requiring high-speed networking in embedded, industrial, and AI-edge devices, where low latency and bandwidth are critical.
The card is built around the Realtek RTL8127 controller, draws less than 1.5W, and connects through a PicoBlade 10-pin connector for either RJ45 or rugged M12 X-code ports, with optional PoE support via JST-GH. It measures 22 × 30/42 mm, supports both Linux and Windows drivers, and is manufactured in Germany. Priced at €99.99 – €112.99, this module is designed for developers and integrators looking to add compact 10GbE networking to Jetson-based edge AI systems, cameras, and other embedded computing platforms.
Auvidea M20E M.2 Specifications
- Networking – 10 Gigabit Ethernet via Realtek RTL8127 controller
- Form factor – M.2 Key E module (2230/2242)
- Connector – PicoBlade 10-pin for RJ45 or M12 X-code interface
- Optional features – PoE support (4-pin JST-GH)
- Power consumption – < 1.5W
- Dimensions – 22 × 30/42 mm
- Software support – Linux, Windows, and more
- Compatibility – NVIDIA Jetson Orin NX, Jetson AGX Orin, and other M.2-equipped systems
- Model number – 38708
- Design/Manufacturing – Made in Germany
A Japanese user tested the RTL8127 on Google Fiber, reaching ~7.4 Gbps with no packet issues seen on Marvell AQC107. It ran cool at 1.95W vs 6W for Marvell, using Realtek’s Windows drivers.
TXA401 PCIe 10GbE Card
The Realtek RTL8127 chipset has also started to appear in low-cost PCIe 10GbE NICs, such as the TXA401, now available on AliExpress for around $45. These single-port adapters provide multi-gigabit Ethernet speeds (10G/5G/2.5G/1G/100M/10M) at low power consumption, making them suitable for desktops, servers, and DIY NAS builds. Unlike older Aquantia AQC107 cards, the RTL8127 solution runs cooler, uses less power, and is PCIe Gen4 x1 compliant.
The TXA401 NIC is designed for wide compatibility with Windows 11 and Linux (up to kernel 6.12), includes low-profile bracket support, and is built to handle line-rate 10GbE performance. At under 2W TDP, it opens the door for cost-sensitive 10GbE adoption in home labs and small servers.
TXA401 PCIe 10GbE Card Specifications:
- Chipset – Realtek RTL8127
- Bus Interface – PCI Express 4.0 x1 (16 GT/s), operable in x1/x4/x8/x16 slots
- Ethernet Port – 1x RJ45 (10GBASE-T / 5GBASE-T / 2.5GBASE-T / 1000BASE-T / 100BASE-TX / 10BASE-T)
- Industry Standards – IEEE 802.3, 802.3u, 802.3x, 802.3ab, 802.3az, 802.3bz, 802.3an
- Transmission Speeds – 10 Gbps / 5 Gbps / 2.5 Gbps / 1 Gbps / 100 Mbps / 10 Mbps
- Indicators – Green (Activity), Orange (10G Speed)
- Form Factor – Standard and Low Profile PCIe brackets
- Power Consumption – < 2W (chipset rating ~1.5W)
- OS Compatibility – Windows 11, Linux kernel up to 6.12
- Environmental – Operating: 5°C to 50°C; Storage: −25°C to 70°C; Humidity: 20–80% RH
- Dimensions – 120 × 99 × 22 mm
Applications include a budget 10GbE upgrade for desktops, home servers, NAS, DIY routers, and compact edge systems where cost and power efficiency are critical.
A user review on AliExpress confirms the Realtek RTL8127 M.2 10GbE card is stable and low-power, performing better than the Aquantia AQC107 in stress tests. The card was quickly recognized, worked without issues, and is recommended. This suggests more RTL8127-based PCIe/M.2 cards and affordable 10GbE SBCs/mini PCs are on the way.
Thanks, cnx-softwear, for the tip.
Editor 
Sayantan Nandy 
Niladri Chowdhury 