QNAP Single-Port 2.5GbE PCIe Network Expansion Card

Overview

The QNAP QXG-2G1T-I225 is a single-port 2.5 GbE PCIe network expansion card designed to boost network speeds beyond traditional gigabit connections. It installs easily into a PCIe Gen2 x1 slot, providing a 2.5 GbE RJ45 port that supports faster data transfer without the need to replace existing Ethernet cables. Powered by the Intel Ethernet Controller I225-LM, this card offers broad compatibility with Windows, Linux, and QNAP’s QTS or QuTS hero operating systems, making it a versatile upgrade for desktops and NAS devices.

Key features

• Provides a 2.5 GbE RJ45 port to increase network throughput up to 2.5 Gbps for faster file transfers and smoother streaming.
• Uses a PCIe Gen2 x1 interface for straightforward installation in most desktop PCs and compatible NAS units.
• Equipped with the Intel Ethernet Controller I225-LM, ensuring reliable performance and wide driver support across multiple platforms.
• Supports advanced networking functions such as VLAN tagging, Wake-On-LAN, jumbo frames, and PXE boot to integrate seamlessly into complex network environments.
• Includes multiple brackets—full-height, low-profile, and a dedicated QNAP NAS bracket—allowing installation in various chassis types from tower PCs to rackmount enclosures.
• Backward compatible with 1 GbE, 100 Mb/s, and 10 Mb/s networks, enabling gradual upgrades without immediate infrastructure changes.

Key specs

• Network port: 1 x 2.5 GbE RJ45
• Interface: PCIe Gen2 x1
• Ethernet controller: Intel I225-LM
• Supported operating systems: Windows, Linux, QTS, QuTS hero
• Network standards: 2.5 GbE, 1 GbE, 100 Mb/s, 10 Mb/s
• Advanced features: VLAN tagging, Wake-On-LAN, jumbo frames, PXE boot
• Included brackets: full-height, low-profile, QNAP NAS-specific

Connectivity and compatibility

This expansion card fits into a PCIe Gen2 x1 slot, which is common in many desktop and NAS systems. Its RJ45 port supports 2.5 GbE speeds while maintaining backward compatibility with slower Ethernet standards, allowing it to work with existing network switches and cables. The card’s driver support covers major operating systems, ensuring smooth integration whether you run Windows, Linux, or QNAP’s specialized NAS software.

Ideal uses and environments

The QXG-2G1T-I225 is well suited for media professionals who need to transfer large video files quickly between workstations and NAS devices. Small offices can benefit from faster shared folder access without costly rewiring, while home users running virtual machines or game servers will appreciate the improved network responsiveness. Its compatibility with various chassis types and network setups makes it a flexible choice for upgrading network speed in diverse environments.