QNAP QXG-25G2SF-E810 2-Port 25G SFP28 PCIe 4.0 Network Adapter Card

The QNAP QXG-25G2SF-E810 is a two-port 25 GbE network adapter that installs in a PCIe 4.0 x8 slot on a desktop workstation or a compatible QNAP NAS. Each SFP28 port delivers up to 25 Gb per second, giving creative teams, virtualization hosts, and backup servers the bandwidth they need to move data without waiting.

When both ports are combined through SMB multichannel or port trunking, the card can push an aggregated throughput of up to 50 Gb per second. Forward Error Correction helps maintain signal integrity across the link, so large projects, virtual machine images, and database files arrive intact even during sustained transfers.

Installation is straightforward. Fit the card into a free PCIe 4.0 x8 slot, choose the bracket that matches your chassis—low-profile, full-height, or the included bracket for select QNAP NAS models—and load the driver for Windows, Linux, or QNAP’s QTS and QuTS hero operating systems. Once installed, the adapter is ready for 25 GbE switches or direct-attach cables.

This card is a practical upgrade for studios that edit 4K and 8K footage over the network, businesses that replicate large backups after hours, and IT teams that need fast links between virtualized hosts. By offloading traffic to a single adapter with two high-speed ports, you free existing 10 GbE or 1 GbE connections for other tasks while shortening your data transfer window.

• Two 25 GbE SFP28 ports that accelerate large data transfers
• PCIe 4.0 x8 interface for ample bandwidth to the host system
• Port trunking support that reaches up to 50 Gb per second
• Forward Error Correction improves link reliability during heavy workloads
• Compatible with QTS, QuTS hero, Windows, and Linux environments
• Ships with low-profile, full-height, and NAS-specific brackets for flexible installation