QNAP QXG-100G2SF-E810 Dual-Port 100GbE PCIe 4.0 x16 Network Expansion Card

Overview

The QNAP QXG-100G2SF-E810 is a dual-port 100GbE network expansion card designed to fit into a PCIe 4.0 x16 slot, delivering ultra-high-speed connectivity for servers and workstations. Powered by the Intel Ethernet Controller E810, it supports data transfer rates up to 100 Gbps per port, making it ideal for environments that require rapid movement of large datasets, consistent bandwidth for multiple virtual machines, or elimination of network bottlenecks in all-flash storage setups.

This card is engineered to maintain low latency even under heavy network load, while Forward Error Correction ensures reliable data transmission over longer distances within data centers. Its low-profile bracket allows installation in compact server chassis, and QSFP28 connectors provide straightforward cabling to existing 100GbE switches. Compatible with both Windows and Linux, it integrates seamlessly into modern IT infrastructures.

Key features

• Dual 100GbE ports with QSFP28 connectors for high-density, high-speed networking
• PCIe 4.0 x16 interface that maximizes throughput and reduces data transfer delays
• Intel Ethernet Controller E810 delivers low latency and efficient packet processing
• Forward Error Correction enhances link reliability over extended distances within data centers
• Low-profile bracket design fits into space-constrained server environments
• Broad OS support including Windows and Linux for versatile deployment options
• Optimized for high-performance computing, virtualization, and all-flash storage networks

Key specs

• Network ports: 2 x 100GbE QSFP28
• Host interface: PCIe 4.0 x16
• Controller: Intel Ethernet Controller E810
• Supported operating systems: Windows, Linux
• Form factor: Low-profile bracket
• Data transfer rate: Up to 100 Gbps per port
• Forward Error Correction: Supported for improved data integrity

Connectivity and compatibility

The card’s QSFP28 connectors enable direct connection to 100GbE switches, simplifying network architecture and cabling. Its PCIe 4.0 x16 interface ensures compatibility with the latest server and workstation motherboards, providing ample bandwidth for demanding applications. Support for both Windows and Linux operating systems allows integration into diverse IT environments, from enterprise data centers to high-performance computing clusters.

Performance and reliability

Equipped with the Intel Ethernet Controller E810, the card maintains low latency even when network links are fully utilized, which is critical for applications requiring consistent and predictable performance. Forward Error Correction technology reduces retransmissions by correcting errors on the fly, ensuring data integrity over longer cable runs or between racks. This makes it a dependable choice for mission-critical workloads and large-scale data transfers.

Ideal uses and environments

This network expansion card is well suited to data centers and enterprise environments where high throughput and low latency are essential. It supports virtualization hosts that require steady IO performance, HPC clusters exchanging large datasets, and backup servers that need to complete replication within tight timeframes. Its compact design also makes it a practical option for dense server racks where space is limited.