Features:
Supports 1-Lane 2.5/5Gbps PCI Express bus
Onboard single 2.5G network port with integrated 10/100/1000M/2.5G transceiver
Support 2.5G and 1G Lite, 100M mode
Auto-negotiation with extended next-page functionality
Swap/sex/skew correction is supported
Cross-detection and auto-correction
SM-LG8125B-BT M.2 A+E KEY RTL8125B 2.5G Single Electrical Network Adapter for 4-speed IEEE802.3 compatible media.
The access controller is combined with a four-speed Ethernet transceiver to meet the 10/100Mbps Ethernet IEEE802.3u specification, the IEEE802.3ab 1000Mbps Ethernet specification, and the IEEE802.3bz 2500Mbps Ethernet specification. It also passes via CAT5e UTP cable or CAT3 UTP.
(10Mbps only) cable provides high-speed transmission. It is suitable for multiple market segments and emerging applications, such as desktops, workstations, servers, communication platforms, and embedded applications. Compliant with PCI Express specification revision v2.1.

Specifications:
Bus type: M.2 A+E
Transmission medium: 1 x 2.5G RJ45 port
Transmission rate: 2.5G
Chipset: RTL8125B
Network mode: Support 2.5G and 1G Lite mode
Slot: M.2 A+E KEY

Network topology:
Compatible with IEEE802.3, IEEE802.3u, IEEE802.3ab
Support IEEE1588v1, IEEE1588v2, IEEE80.2AS time synchronization
Supports shaping algorithms based on IEEE802.1Qav credit
Supports IEEE802.1P Layer 2 priority encoding
IEEE802.1Q VLAN tagging is supported
Support IEEE802.3AZ-2010
Support IEEE802.3bz-2016 (NGBASET)
Supports full-duplex flow control (IEEE802.3x)
Supports jumbo frames up to 16K bytes
Support for Virtual Machine Queues (VMQ)
Quad-core receive-side scaling (RSS) support

Package include:
1 x Ethernet Network Lan Card