QNAP QXG-5G2T-111C Dual-Port 5GbE PCIe Network Expansion Card

Overview

The QNAP QXG-5G2T-111C is a dual-port 5GbE PCIe network expansion card designed to add two 5GBase-T RJ-45 Ethernet ports to systems with a PCIe 3.0 x2 slot. It supports network speeds up to 5 Gbps while maintaining backward compatibility with 2.5G, 1G, and 100 Mb/s connections, allowing users to upgrade their network performance without replacing existing Cat 5E cables. Powered by the Marvell AQC111C controller, this card delivers stable and efficient network throughput across Windows, Linux, and QNAP QTS platforms.

Key features

• Dual 5GBase-T RJ-45 ports provide faster network speeds using existing cabling infrastructure
• PCIe 3.0 x2 interface ensures straightforward installation and high data transfer rates
• Marvell AQC111C controller offers reliable and consistent network performance
• Includes three mounting brackets (low-profile, full-height, NAS-specific) for versatile installation options
• Compatible with multiple operating systems including QNAP QTS, Windows, and Linux for broad usability

Key specs

• Network ports: 2 x 5GBase-T RJ-45
• Supported speeds: 5 Gbps, 2.5 Gbps, 1 Gbps, 100 Mbps
• Interface: PCIe 3.0 x2
• Network controller: Marvell AQC111C
• Mounting brackets: low-profile, full-height, NAS-specific
• Operating system compatibility: QNAP QTS, Windows, Linux

Connectivity and compatibility

This expansion card fits into any system with an available PCIe 3.0 x2 slot, making it suitable for desktop PCs and NAS devices alike. The dual RJ-45 ports support multiple Ethernet speeds, allowing seamless integration into existing networks without the need for new cabling. Its compatibility with major operating systems ensures it can be deployed in diverse environments, from home offices to small business networks.

Installation and setup

The QXG-5G2T-111C comes with three different mounting brackets, enabling easy installation in various chassis types including low-profile cases and NAS enclosures. This flexibility simplifies upgrading network capabilities without requiring hardware modifications or additional adapters. Once installed, the card operates with standard drivers supported by Windows, Linux, and QNAP QTS, minimizing setup time and complexity.

Ideal uses and environments

This network expansion card is well suited for professionals and enthusiasts who need faster data transfer rates for tasks such as file sharing, media streaming, and data backup. It works well in home offices, small business setups, and network-attached storage environments where upgrading network speed is essential but rewiring is impractical. Its ability to leverage existing Cat 5E cables makes it a cost-effective solution for improving network performance.