Qnap is upgrading 25GbE card with a new CX6 chipset – QXG-25G2SF-CX6


The previous card was QXG-25G2SF-CX4 Dual-port SFP28 25GbE network expansion card; low-profile form factor; PCIe Gen3 x8

A new card is — QXG-25G2SF-CX6

Price: US$247.00



Controller: Mellanox ConnectX-6 Lx

Connector: SFP28

PCIe interface: PCIe Gen3/Gen4 x8

Transmission rates: 25Gbps/10Gbps

Supported operating systems: QTS; Windows (Driver required); Linux (Driver required)

Supported QNAP NAS: Models with PCIe slot(s) (1 free slot required)

Bracket: Low-profile bracket pre-installed; full-height and specialized (for selected QNAP NAS) brackets are bundled

Port and cable: SFP28 DAC cable (3M) or SFP28 OPTIC transceiver

Warranty: 1 year limited warranty


25GbE NICs are designed for data-intensive applications and enterprise IT environments. To reach the full potential of 25GbE transmission, you require high-performance hardware configurations, including:

1) At least three workstations with Intel® Core™ i5/i7 processors (or similar) at 3.3 GHz (or higher) and NVMe SSDs.

2) A QNAP NAS with an Intel® Core™ i5/i7 processor (or similar) with NVMe SSDs and/or Enterprise-level SATA SSDs (SLC/MLC). At least 12 SSDs are recommended.




QXG-25G2SF-CX6 now available



More info about ConnectX®-6

Click to access pb-connectx-6-lx-en-card.pdf

Click to access ethernet-adapter-brochure.pdf


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One thought on “Qnap is upgrading 25GbE card with a new CX6 chipset – QXG-25G2SF-CX6

  1. How do you get this card (QNAP QXG-25G2SF-CX6) to work on a Windows 10 Workstation? It doesn’t come up anywhere on the windows syst config? QNAP shows it working on a windows 10 system.