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Qnap dual-port 25GbE network card with low-profile bracket

Qnap

Qnap QXG-25G2SF-CX6 25GbE dual-port network card

SKU CH-W38P-C8AE8

Dual-port 25GbE card with SR-IOV and RoCE for low-latency virtualization, combining both ports up to 50 Gbps

  • Dual 25GbE ports deliver high-speed connectivity to multiple devices
  • Port Trunking combines both ports for up to 50 Gbps transfer speeds
  • SR-IOV allocates bandwidth directly to VMs for reliable virtualisation
  • RoCE reduces latency by accessing network data directly in RAM
  • Low-profile bracket pre-installed with full-height and specialised brackets included

Dual 25GbE network card with SR-IOV and RoCE

This Qnap network interface card delivers two 25GbE ports that also run at 10Gbps. It uses an NVIDIA Mellanox ConnectX-6 Lx SmartNIC controller and installs in a PCIe Gen 3 x4 slot. Low-profile and full-height brackets are included for flexible mounting.

Suited for virtualisation hosts

Administrators who need SR-IOV to assign dedicated bandwidth to virtual machines and RoCE for low-latency RAM-direct transfers will benefit. Buyers whose NAS or servers lack SR-IOV or RoCE support, or who only have slower PCIe slots, should consider other options.

Handles 50Gbps aggregated throughput for intensive

Port Trunking combines both ports to reach 50Gbps, accelerating large file sharing and heavy data movement. The card runs out of headroom when workloads exceed dual 25GbE bandwidth or when the host system cannot supply PCIe Gen 3 x4 performance.

Highlights

  • Dual 25GbE ports deliver high-speed connectivity to multiple devices
  • Port Trunking combines both ports for up to 50 Gbps transfer speeds
  • SR-IOV allocates bandwidth directly to VMs for reliable virtualisation
  • RoCE reduces latency by accessing network data directly in RAM
  • Low-profile bracket pre-installed with full-height and specialised brackets included

Specifications

No published specifications for this item yet.

Questions about this item

What PCIe slot size and generation does this card need to run at 25 Gbps?

The card uses a PCIe Gen 3 x4 interface; a physical x4 slot or larger is required for full bandwidth.

Will the dual 25GbE ports work with my existing 10GbE switches and cabling?

Yes, each port supports 10 Gbps as well as 25 Gbps, so they connect directly to 10GbE equipment without extra adapters.

How can I verify SR-IOV and RoCE are active after installing the card in my QNAP NAS?

In QTS or QuTS hero, open the network adapter settings; SR-IOV and RoCE will show as enabled when the NAS model and the remote device both support them.

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