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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
- Built with Realtek RTL8125BG chip, supports 2.5G/1G/100Mbps auto-negotiation (up to 2500Mbps). 5X faster than gigabit for gaming, 4K streaming, and large file transfers.
- Compatible with M.2 A+E Key slots (PCIe 2.1 x1). Comes with 18cm flat cable and standard COM port bracket for easy chassis installation, no extra cables needed.
- Supports Windows 711, Windows Server, Linux, Ubuntu, FreeBSD, and VMware ESXi. Features PXE boot, WOL wake-on-LAN, DPDK, iSCSI, and Jumbo Frames (9K).
- Single RJ45 port (Cat5e/Cat6 up to 100m). Built-in LINK/ACT LEDs for real-time status. Supports auto-crossover, polarity correction, and hardware CRC/ECC for error-free data.
- Small PCB size (30×22mm) with full-height & low-profile brackets included. Ideal for desktops, mini-PCs, servers, NAS, and industrial PCs needing extra 2.5G connectivity.
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Overview
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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 2.5Gbps, 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
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Warranty
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- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by TechCore Supply Return Policy
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