M.2 A+E Key 2.5G Ethernet LAN Card, RTL8125BG Chip M2 A/E to RJ45 COM Port Network Adapter, 2.5G/1G/100Mbps Gigabit NIC for Desktop PC

M. 2 A+E Key 2.5G Ethernet Network Adapter is a high-performance NIC built around the Realtek RTL8125BG controller, delivering blazing-fast 2500Mbps network speed for your desktop, server, or mini-PC. Designed for M. 2 A+E Key slots (PCIe 2.1 x1), it converts an M. 2 slot into a standard RJ45 LAN port via a COM port bracket and 18cm flat cable, making installation seamless in most PC cases. Powered by the original RTL8125BG chip, the card supports 2.5G bps, 1Gbps, and 100Mbps auto-negotiation, providing 5× faster throughput than traditional gigabit cards.

Its perfect for online gaming, 4K/8K video streaming, large file backups, and NAS transfers. The RJ45 port works with Cat5e/Cat6 cables up to 100 meters, and built-in LINK/ACT LEDs display real-time connection and activity status. This adapter offers server-grade features including PXE boot, WOL wake-on-LAN, DPDK, iSCSI, and 9K Jumbo Frames, ensuring reliability for both home and enterprise use. It supports a wide range of operating systems: Windows 7/8/10/11, Windows Server 20082022, Linux, Ubuntu, FreeBSD, and VMware ESXi. The compact 30×22mm PCB comes with full-height and low-profile brackets for flexible installation. Whether youre upgrading a desktop, building a home server, or expanding a NAS, this M. 2 A+E Key 2.5G NIC is a cost-effective, high-performance solution for adding ultra-fast wired connectivity.

Specifications

:
Chipset: Realtek
RTL8125BG Interface: M. 2 A+E Key (PCIe 2.1 x1)
RJ45 Speed: 2.5G /1G/100Mbps (Auto-Negotiation)
Cable: 18cm Flat Ribbon
Cable Bracket: Full-Height & Low-Profile (COM
Port) LEDs: LINK/ACT (Connection/Activity)
Supported OS: Windows, Linux, Ubuntu, FreeBSD, VMware
Features: PXE, WOL, DPDK, iSCSI, Jumbo Frames (9K)
Cable Type: Cat5e/Cat6 (Up to 100m)
Size: 30mm × 22mm