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Main image of M.2 B+M Key Gigabit Ethernet Card Realtek RTL8111F, Copper RJ45, M.2 Network Adapter

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M.2 B+M Key Gigabit Ethernet Card Realtek RTL8111F, Copper RJ45, M.2 Network Adapter

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The SM-LG8111A-BT is a cost-effective 10/100/1000M adaptive gigabit Ethernet card. It fully complies with the IEEE 802.3 10Base-T Ethernet standard, the IEEE 802.3u 100MBase-TX fast Ethernet standard, and the IEEE 802.3ab 1000MBase-T standard.; The Gigabit Ethernet standard supports IEEE 802.3x full-duplex flow control.; The SM-LG8111A-BT adopts the M.2 2260 standard interface (22×60×6.1mm) to ensure sufficient bandwidth. M.2 B+M Key interface; The transmission rate is 2.5 Gb/s. Users can provide a RJ-45 network interface for the system through a jumper cable, a front or back sub-card.; In full-duplex mode, its network speed can reach 1000 Mbps. It supports cross-checking and automatic correction, and is backward compatible with 10/100BASE-T.; Automatic negotiation operation for network data rates of 10/100/1000 Mbps, compatible with existing CAT-5 UTP cables, allowing users to achieve convenient, fast and efficient operation.; Simple and reliable connection.

Overview

Specs

Reviews

Compliant with the M. 2 B+M KEY NVMe bus interface specification High-performance 1000BASE-T Ethernet controller card - Backward compatibility with 10/100BASE-T networks - Supports frames up to 9K bytes - Automatic negotiation of 10/100/1000Mbps data rates - Compatible with existing CAT-5 UTP cables - Fully compliant with IEEE 802.3, IEEE 802.3 u, IEEE 802.3 ab - Supports half/full duplex mode and 802.3 x flow control - Supports IEEE 802.1P Layer2 priority encoding - Supports IEEE 802.1Q VLAN tagging - On-chip send/receive buffers support - Cross detection and automatic correction operations - Supports power saving during power loss / link disconnection - Local network wake-up and remote wake-up function support
Network type: M. 2 to Gigabit Ethernet conversion
Bus type: M. 2 2260 standard interface, 2.5G b/s
Main chipset: Realtek RTL8111F
Transmission medium: 1 x RJ45 electrical port
Transmission rate: 10/100/1000 Mbps
Operating System Support: Windows ME, 98SE, 2000, XP, Vista, Windows 7, Windows 8, Windows 10 (32-bit / 64-bit) Windows Server 2003, 2008, 2012, 2016 (32-bit / 64-bit) Linux, DOS, macOS X 10.4. X or later

Additional Information
First Listed on Newegg	July 15, 2026

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Return for refund within: 30 days
Return for replacement within: 90 days
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Item#: 9SIC7FXM183106