QNAP QXG-5G4T-111C Quad-Port 5GbE Network Expansion Card

Overview

The QXG-5G4T-111C is a quad-port, 4-speed multi-gigabit network expansion card that delivers up to 5 Gbps per port — giving compatible QNAP NAS systems and desktop PCs four independent high-throughput network connections without replacing existing cable runs. If your infrastructure is already wired with Cat5e or Cat6, this card lets you step up from 1 GbE to 5 GbE without a full recabling project: the practical payoff for NAS environments handling simultaneous multi-user file transfers, backup workloads, or surveillance stream aggregation where a single 1 GbE uplink has become the bottleneck. The QXG-5G4T-111C supports four speeds across all ports, so it integrates into mixed-speed switch environments without forcing an all-or-nothing upgrade elsewhere in the network.

Compatibility

Designed for QNAP NAS systems and desktop PCs or servers equipped with a compatible PCIe expansion slot. Check your specific QNAP NAS model's expansion slot specification against the card's PCIe interface requirement before ordering — not all QNAP enclosures include a full-length PCIe slot. This card is positioned within the broader network expansion card category alongside other QNAP QXG-series adapters; if your chassis supports only a smaller PCIe form factor or a single-port requirement, review the QNAP network expansion lineup for the matching variant. For NAS deployments aggregating multiple IP camera streams, pairing this card with a network video recorder or a PoE switch upstream ensures the NAS-side bandwidth matches the camera-side feed density.

Installation Notes

The card supports existing Cat5e and Cat6 cabling at 5 Gbps — no rerun required for most structured-cabling environments. Verify your host system's PCIe slot availability and physical card clearance before installation. Driver and OS support should be confirmed against the current QNAP compatibility list for your NAS firmware version prior to deployment.