QXG-25G2SF-CX6 QNAP 25G PCIe 4.0 x8 Ethernet Network Card

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€535.00

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Happyware Article Number:

SH3N4337-670836

Manufacturer Number:

QXG-25G2SF-CX6

Brand:

QNAP

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Description Technical details Warranty & Technical Support Reviews Bulk Deals

QXG-25G2SF-CX6

High-Performance Low-Profile 25GbE SmartNIC enabling PCIe Gen4 acceleration with the QXG-25G2SF-CX6

The QXG-25G2SF-CX6 is a PCIe 4.0 x8, low-profile dual-port 25GbE SFP28 SmartNIC designed for modern server and NAS platforms where deterministic throughput and low latency are architectural requirements. Built on the NVIDIA ConnectX-6 Lx EN controller, it aligns well with virtualization-dense CPU hosts and storage nodes by reducing host CPU cycles spent on encapsulation, segmentation, and steering.

By pairing 2 x 25GbE SFP28 uplinks with hardware offloads for SR-IOV and overlay protocols, the QXG-25G2SF-CX6 improves east-west traffic efficiency for hypervisors and container fabrics while maintaining compatibility with 10GbE and 25GbE speed profiles. RoCE (RDMA over Converged Ethernet) support enables lower-latency data movement for storage networking and HPC-adjacent workloads, and PXE boot support simplifies stateless provisioning and fleet rollout in standardized racks.

Why Choose the QXG-25G2SF-CX6?

The QXG-25G2SF-CX6 delivers a practical density-to-performance ratio: 2 high-speed ports in a single low-profile slot, backed by PCIe Gen4 bandwidth and SmartNIC-class offloads that preserve compute headroom for applications. It scales cleanly from single-node upgrades to multi-node fabrics, supporting predictable network behavior under virtualization and overlay-heavy traffic while keeping deployment straightforward across mixed server and NAS estates.

QNAP focuses on integration-driven engineering, ensuring the adapter’s firmware and platform behavior fit enterprise operational standards for reliability, lifecycle management, and consistent connectivity in data centre environments.

Key Applications:

25GbE server and NAS uplinks
iSCSI and storage networking
Virtualization with SR-IOV
Overlay networks (VXLAN/NVGRE/Geneve)
RoCE-enabled low-latency fabrics

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your rollout plan for the QXG-25G2SF-CX6 and an extended warranty up to 6 years to secure long-term operation in production environments.

Technical details of QXG-25G2SF-CX6

Bluetooth:

None

Boot Technology:

PXE

DPU Support:

smartnic

Form Factor:

Low-Profile

Networking Type:

Ethernet

PCIe Connector:

PCIe 4.0 x8

Ports:

2x SFP28 25 Gbps

RDMA:

RoCE

Supported Speed Profile:

10G 25G

Virtualization:

SR-IOV NVGRE VXLAN Offload Geneve Offload

WiFi:

None

How long is the Warranty and how you can get technical support for QXG-25G2SF-CX6

Warranty:	60 months (part) 60 months (labor)
RMA through customer:	yes
Advanced replacement:	yes
RMA Url:	https://www.qnap.com/en/rma-service
Description:	Your QNAP NAS is protected directly by the manufacturer. 100% parts and labor cover with no additional cost. The Advanced Replacement service expedites hardware replacement, shipping you a replacement unit in advance of you returning your existing NAS.