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    M.2 (B+M Key) to 4-Port RJ45 Gigabit Ethernet Network Card RTL8111H Chip LAN Adapter with 4 RJ45 Ports, High-Speed 10/100/1000 Mbps for Gaming, NAS, Industrial Control & Servers

    • Quad-Port Gigabit Expansion Expands your system with four independent RJ45 Gigabit Ethernet ports, each supporting 10/100/1000 Mbps auto-negotiation. Ideal for network aggregation, routing, and virtualization setups for gaming PCs, NAS, or industrial servers.
    • Compact & Compatible Design Uses an M.2 (B+M Key) interface, compatible with most mini-PCs, routers, and embedded boards. Delivers high-speed PCIe connectivity while saving internal spaceperfect for compact systems and custom builds.
    • Stable Performance Built with RTL8111H controllers for each LAN port, ensuring low latency, strong compatibility, and energy efficiency. Each port supports auto cross-detection, correction, and full-duplex flow control (IEEE 802.3x).
    • Industrial-Grade Durability Operates reliably from 0°C to 70°C (32°F158°F) and stores safely between -20°C to 85°C (-4°F185°F). Compact PCB design (main board 22×80mm / 0.87×3.15in, sub-board 45×70mm / 1.77×2.76in), perfect for industrial environments.
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    Quad-Port Gigabit Expansion Expands your system with four independent RJ45 Gigabit Ethernet ports, each supporting 10/100/1000 Mbps auto-negotiation. Ideal for network aggregation, routing, and virtualization setups for gaming PCs, NAS, or industrial servers.
    Compact & Compatible Design Uses an M.2 (B+M Key) interface, compatible with most mini-PCs, routers, and embedded boards. Delivers high-speed PCIe connectivity while saving internal spaceperfect for compact systems and custom builds.
    Stable Performance Built with RTL8111H controllers for each LAN port, ensuring low latency, strong compatibility, and energy efficiency. Each port supports auto cross-detection, correction, and full-duplex flow control (IEEE 802.3x).
    Industrial-Grade Durability Operates reliably from 0°C to 70°C (32°F158°F) and stores safely between -20°C to 85°C (-4°F185°F). Compact PCB design (main board 22×80mm / 0.87×3.15in, sub-board 45×70mm / 1.77×2.76in), perfect for industrial environments.
    Broad OS Support Compatible with Windows, Linux, and macOS operating systems. Plug-and-play setup with included connection cables. Power consumption only 7W, ensuring efficiency for continuous 24/7 operation in NAS or network servers.

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