Detailed Specifications
QNAP QXG-100G2SF-E810 - 100GbE Network Card
Overview
The QNAP QXG-100G2SF-E810 is an ultra-high-speed dual-port 100GbE network expansion card built on the Intel Ethernet Controller E810. Designed for enterprise data centers and all-flash storage environments, it utilizes a PCIe Gen 4 x16 interface to provide up to 200Gbps of total throughput. Systems engineers integrate this card into high-end NAS units or Windows/Linux servers to eliminate bandwidth bottlenecks in I/O-intensive virtualization and large-scale backup operations.
Technical capability is defined by its support for Forward Error Correction (FEC), which ensures reliable data transmission over noisy or long-distance fiber channels by correcting bit errors at the receiving end. The card supports advanced network offloading technologies, including iWARP/RDMA and SR-IOV, which significantly reduce CPU overhead and latency. This makes it a critical component for high-performance computing (HPC) and low-latency cloud applications.
Deployment is optimized for QNAP's flagship all-flash arrays, such as the TS-h2490FU, and is compatible with standard 19-inch rackmount servers. The card is hot-swappable in supported chassis and comes with pre-installed low-profile brackets, with full-height alternatives included. It is intended for use with QSFP28 switches and cables; it should not be used in legacy PCIe Gen 2 or x4 slots as it will significantly throttle the 100Gbps performance potential.
Key Features
Dual 100GbE QSFP28 ports deliver up to 200Gbps total bandwidth
PCIe Gen 4 x16 interface ensures maximum data transfer efficiency
Intel E810 Controller supports iWARP/RDMA for low-latency networking
FEC support maintains data integrity across high-speed connections
SR-IOV capability optimizes bandwidth allocation for virtual machines
Specifications
| Feature | Specification |
| Brand | QNAP |
| Part Number | QXG-100G2SF-E810 |
| Product Type | Network Expansion Card |
| Controller | Intel Ethernet Controller E810 |
| Number of Ports | 2 x QSFP28 |
| Bus Interface | PCIe Gen 4 x16 |
| Speed | 100 Gbps per port |
| Network Offloads | iWARP, RDMA, RoCE v2, SR-IOV |
| Error Correction | Forward Error Correction (FEC) |
| Form Factor | Low-profile (Full-height bracket included) |
| OS Support | QTS, QuTS hero, Windows, Linux/Ubuntu |
| Cooling | Active Fan |
