M.2 B+M Key 5G Ethernet Network Card with Realtek RTL8126 Chip, Single RJ45 Copper Port Wired LAN Adapter, Low Latency Gaming NIC Supports 5G/2.5G/1G for Desktop PC NAS Streaming

This M.2 to 5G wired Ethernet adapter adopts the premium Realtek RTL8126 5GBase-T controller, offering high-performance wired network upgrades for gaming desktops, media NAS, content workstations and soft routers. It features one standard RJ45 copper port that auto-negotiates 5000Mbps, 2500Mbps, 1000Mbps, 100Mbps and 10Mbps speeds, fully backward compatible with existing Cat5e/Cat6/Cat6a wiring infrastructures.

Optimized for competitive online gaming, the RTL8126 chip integrates hardware checksum offloading and low-latency packet processing technology. It minimizes jitter and ping fluctuations during multiplayer matches, live streaming and large file downloads, avoiding micro-stutters caused by onboard motherboard LAN chips. The card supports jumbo frames up to 16KB, IEEE 802.1Q VLAN tagging and 802.1P QoS traffic priority, ideal for separating gaming, streaming and storage transmission traffic.

Designed with space-saving M.2 B+M Key interface, it occupies no traditional PCIe expansion slots and matches mainstream 2242, 2260 and 2280-length M.2 slots on motherboards. Integrated multi-layer metal shielding suppresses electromagnetic interference from GPU and power supply, maintaining stable 24/7 continuous operation.

Additional practical functions include remote wake-on-LAN, energy-efficient Ethernet (EEE) power saving and hardware CRC error correction to prevent packet loss. It comes with complete driver support for Windows 7/10/11 and all mainstream Linux distributions, plug-and-play after driver installation. Perfect for gamers chasing stable low-latency network, creators transferring 4K video files, and NAS storage equipment requiring high-speed local network transmission.