QNAP QXG-100G2SF-E810

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.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

Learn more

Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

Learn more