QNAP Dual-port 100 GbE Network Expansion Card

Step into a new realm of data throughput with the QNAP Dual-port 100 GbE Network Expansion Card, a高-performance PCIe expansion card powered by the NVIDIA Mellanox ConnectX-6 Dx controller. Designed to eliminate bottlenecks in demanding workloads, this 2-port 100GbE NIC delivers extraordinary bandwidth and ultra-low latency, making it ideal for high-performance storage arrays, virtualization environments, clustered workloads, and latency-sensitive applications. Built for PCIe 4.0 to ensure maximum data transfer efficiency, this expansion card is engineered to unlock the full potential of your servers, NAS devices, and data centers without compromising reliability, security, or scalability.

• Two ultra-high-speed 100 GbE ports for seamless, scalable bandwidth. The QXG-100G2SF-CX6 delivers aggregated throughput up to 200 Gbps, empowering large-scale data transfers, virtual machine migrations, and real-time analytics with minimal latency. Whether you’re consolidating storage, accelerating backups, or running bandwidth-hungry workloads, this dual-port NIC is built to handle it with headroom to spare.
• NVIDIA Mellanox ConnectX-6 Dx controller for advanced offloads. At the heart of the card is the powerful ConnectX-6 Dx offload engine, which accelerates network processing and reduces CPU overhead. This enables higher application performance, lower latency, and more efficient utilization of server resources, so you can run demanding workloads without sacrificing compute power for other tasks.
• PCIe 4.0 interface for blazing-fast data transfer. The card is engineered to take full advantage of PCIe 4.0 compatibility, delivering robust bandwidth now and staying future-proof as you upgrade to faster systems. Its design supports PCIe 4.0-enabled platforms while maintaining broad compatibility with existing PCIe environments, ensuring a smooth integration into a wide range of servers and NAS appliances.
• Low-latency networking designed for the most demanding environments. From hyperscale data centers to high-performance NAS deployments, the card minimizes round-trip time and jitter. Buffering optimizations, efficient packet processing, and hardware-accelerated features help keep time-sensitive applications responsive, even under peak loads.
• Broad compatibility and flexible deployment options. With support for multiple operating systems and virtualization environments, the QNAP 100 GbE expansion card fits into diverse infrastructures. It’s an ideal upgrade path for data-center racks, edge deployments, and hyper-converged configurations where stable, high-throughput networking is essential.

Technical Details of QNAP Dual-port 100 GbE Network Expansion Card

• Model: QXG-100G2SF-CX6
• Ports: 2-port 100 GbE network expansion (high-speed Ethernet interfaces; form-factor optimized for dense rack deployments)
• Controller: NVIDIA Mellanox ConnectX-6 Dx
• Interface: PCIe 4.0 (backward compatible with PCIe 3.x platforms)
• Throughput: Up to 200 Gbps total aggregate bandwidth across both ports
• Latency: Optimized for low-latency packet processing and rapid IO
• Form Factor: PCIe add-in card designed for servers, NAS devices, and high-density storage arrays
• Features: Offload capabilities to reduce CPU overhead, support for advanced networking offloads, and enhanced data handling for high-performance workloads
• Compatibility: Broad OS support and virtualization-friendly features to support modern data-center workloads

How to install QNAP Dual-port 100 GbE Network Expansion Card

Installing the QNAP Dual-port 100 GbE Network Expansion Card is a straightforward process that instantly upgrades your networking capabilities. Follow these steps to ensure a proper, stable installation and optimal performance:

• Prepare your system: Power down the server or NAS, unplug power sources, and discharge any residual static electricity. Ensure you have a suitable PCIe slot available that supports PCIe 4.0 (or at least PCIe 3.x for compatibility).
• Open the chassis: Remove the access panel or side cover according to your device’s manual. Ground yourself to prevent static discharge and locate an available PCIe slot, preferably a PCIe x8 or x16 slot for maximum bandwidth.
• Insert the card: Carefully align the card with the PCIe slot and firmly insert it until the retention mechanism snaps into place. Secure the bracket with the appropriate screw to prevent movement during operation.
• Connect networking cables (if applicable): Attach the appropriate 100 GbE adapters or fiber/SFP28 DAC cables to the two ports. Use 100 GbE-compliant fiber transceivers or copper direct-attach cables as required by your network design. Ensure cable quality and connector cleanliness to minimize signal loss.
• Power up and boot: Reattach power, power on the device, and wait for the system to boot fully. If your server or NAS runs a hardware initialization sequence, allow it to complete before installing drivers.
• Install drivers and firmware: Access the manufacturer’s support portal or the device’s driver package to install the latest NIC drivers and firmware for the ConnectX-6 Dx controller. Reboot if prompted to apply updates and verify that the NIC is detected in the operating system and the management interface.
• Configure networking: In the operating system or virtualization platform, create and assign networks to the new 100 GbE ports. Enable features such as SR-IOV, RDMA, or NIC virtualization offloads as required by your workload, and verify throughput with a bandwidth test to confirm baseline performance.
• Optimize and monitor: Set up quality-of-service (QoS), bonding or link aggregation if your environment supports it, and enable any recommended offloads to achieve the best balance between performance and CPU utilization. Monitor health and throughput using standard network management tools.

Frequently asked questions

• Q: What is the main benefit of the QNAP Dual-port 100 GbE Network Expansion Card?
  A: It provides two high-speed 100 GbE ports with up to 200 Gbps total throughput, delivering ultra-low latency to support demanding workloads, virtualization, and data-center-scale operations without overwhelming the host CPU.
• Q: Which controller is used in this card?
  A: The card uses the NVIDIA Mellanox ConnectX-6 Dx controller, a powerful offload engine that accelerates networking tasks and reduces CPU overhead for improved system performance.
• Q: What kind of PCIe interface does the card use?
  A: The card is designed for PCIe 4.0, enabling higher data transfer rates and improved efficiency. It remains compatible with PCIe 3.x systems, though performance benefits are maximized on PCIe 4.0 platforms.
• Q: How many ports does this expansion card have and what speeds do they support?
  A: The card features two ports that support 100 GbE Ethernet, allowing dual-port configurations and potential throughput up to 200 Gbps in aggregate bandwidth, depending on network design and cable/optics used.
• Q: What cables or optics are required?
  A: Use appropriate 100 GbE-compliant optics (e.g., QSFP28/SFP28 modules as per your network design) or direct-attach copper (DAC) cables. The exact transceiver or cable type depends on your switch, router, or fiber infrastructure and the port form-factor.\n
• Q: Is this card suitable for virtualization and cloud environments?
  A: Yes. The ConnectX-6 Dx controller offers features such as NIC offloads and virtualization-ready capabilities (e.g., SR-IOV and RDMA where supported), enabling high-performance networking in virtual machines and containers while preserving CPU cycles for applications.
• Q: Do I need special software or drivers?
  A: Drivers and firmware updates are provided by the manufacturer and are typically installed through the operating system or through the vendor’s support portal. It’s important to keep drivers up to date to ensure compatibility with your OS, hypervisor, and networking equipment.
• Q: Can this NIC be used in NAS environments for accelerated storage networking?
  A: Absolutely. The 100 GbE capability, combined with offload features and low latency, makes it well-suited for accelerated storage networking, data replication, and high-speed backups in NAS-centric deployments.