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he dual-port QXG-25G2SF-E810 25GbE network expansion card with Intel® Ethernet Controller E810-XXVAM2 supports PCIe Gen4 (backwards compatible with Gen3) and provides up to 25Gbps transfer speeds (10/25Gbps supported). By using SMB Multichannel to aggregate multiplied network connections, you maximize available bandwidth and can achieve up to 50Gb/s for accelerating file sharing and intensive data transfer. With Network Offload support, the QXG-25G2SF-E810 greatly boosts network efficiency and is ideal for I/O-intensive and latency-sensitive virtualization applications, data centers, and multimedia transmission/real-time video editing.


Compatible with NAS and PC

QNAP Network Expansion Cards support NAS operating systems (QTS and QuTS hero), Windows® 11, Windows Server® and Linux®, allowing you to expand the performance potential of all your networked devices.

Build 25GbE networks with QNAP NAS and high-speed network switches

QNAP provides one-stop 25GbE storage and networking solutions for ultra-high speed connectivity to meet various needs. The TS-h2287XU-RP NAS not only fully realizes 25Gb/s performance but also allows for more connected PCs/workstations by installing the QXG-25G2SF-E810 through PCIe Gen 4 slots. Coupled with 25GbE network switch, you can create an ultra-high speed and scalable network environment with great cost efficiency.


Ensure reliable data transfer with Forward Error Correction (FEC)

The QXG-25G2SF-E810 supports FEC to overcome packet loss – a potentially common occurrence in fast, long-distance networks. FEC helps the receiving side detect and recover lost data to correct bit errors, thus ensuring reliable data transmission over “noisy” communication channels. With three FEC modes, you can use a suitable cable and switch to build an optimal network environment.


Controller Intel E810-XXVAM2
Number of Ports 2 x SFP28
Connector SFP28
PCIe and Lanes PCIe Gen4 x8
Transmission Rates 25Gbps/10Gbps
IEEE Standards IEEE 802.3az
IEEE 802.1Q
IEEE 802.3x
IEEE 802.1p
IEEE 802.3ad
IEEE 802.3ae
IEEE 1588
IEEE 802.1as
Bracket Low-profile bracket pre-installed; full-height and specialized (for selected QNAP NAS) brackets are bundled
Supported NAS operating systems QTS/QuTS hero (recommend an upgrade to the latest version); Windows (Driver required); Linux (Driver required)
Supported QNAP NAS Models with PCIe slot(s) (1 free slot required)
Port and Cable SFP28 DAC cable (3M) or SFP28 OPTIC transceiver
Package Contents 1 x Network card; 1 x QIG; 3 x Brackets
Brand QNAP
Shipping Weight 2.0000kg
Shipping Width 0.160m
Shipping Height 0.169m
Shipping Length 0.219m
Shipping Cubic 0.005922000m3
Manufacturer Warranty
12 Months Limited Warranty
Manufacturer Contact Info 

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QNAP QXG-25G2SF-E810 25GBE Network Expansion Card

Model# QXG-25G2SF-E810

  • SKU: QXG-25G2SF-E810

SAVE $354.00 (33%)
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