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QNAP QXG-100G2SF-CX6 100GbE Dual-Port Network Adapter — main product image
QNAP

QNAP QXG-100G2SF-CX6 100GbE Dual-Port Network Adapter

PCIe Gen 4

Supercharge Your Network with QNAP 100GbE Adapter The QXG-100G2SF-CX6 is a 2-Port Ultra-high-Speed 100GbE Networking Adapter designed for low-latency and high-throughput network performance. Perfect for accelerating file sharing and data transfer, this adapter is a powerhouse for demanding applic...

$123.00*$1,230.85Save 90%
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Supercharge Your Network with QNAP 100GbE Adapter

The QXG-100G2SF-CX6 is a 2-Port Ultra-high-Speed 100GbE Networking Adapter designed for low-latency and high-throughput network performance. Perfect for accelerating file sharing and data transfer, this adapter is a powerhouse for demanding applications.

Specifications:

  • Controller: NVIDIA Mellanox ConnectX-6 Dx
  • Ports: Dual 100GbE (supports 1/10/25/40/50Gbps)
  • PCIe: Gen 4 x16 (compatible with PCIe 3.0 x16)
  • Port Trunking: Supports up to 200 Gbps transfer speeds
  • SR-IOV: Supported
  • RoCE: Supported
  • Operating Systems: QNAP's QTS, QuTS hero, Windows, and Linux
  • Bracket: Low-profile bracket pre-installed, with full-height and specialized brackets included

Key Features

Equipped with NVIDIA Mellanox ConnectX-6 Dx controller

Dual 100GbE (supports 1/10/25/40/50Gbps) ports allows connecting to multiple high speed networking devices

PCIe Gen 4 x16 (compatible with PCIe 3.0 x16)

Supports Port Trunking to combine both ports to achieve up to 200 Gbps transfer speeds for accelerating file sharing and intensive data transfer

Supports SR-IOV which can allocate bandwidth resources from a physical network card directly to VMs ensuring reliable VM applications and reduced CPU overheads

Supports RoCE which can access a network directly in RAM to effectively reduce latency and enhance performance and efficiency for VMware virtualization environments

Supports QNAP's QTS, QuTS hero, Windows and Linux OS

Comes with Low-profile bracket pre-installed with full-height and specialized (for selected QNAP NAS) included

Specifications

Controller
NVIDIA Mellanox ConnectX-6 Dx
Ports
Dual 100GbE
Supported Speeds
1/10/25/40/50/100Gbps
Interface
PCIe Gen 4 x16 (compatible with PCIe 3.0 x16)
Features
Port Trunking, SR-IOV, RoCE
Supported Operating Systems
QNAP QTS, QuTS hero, Windows, Linux
Brackets Included
Low-profile (pre-installed), Full-height, Specialized (for selected QNAP NAS)

Pros & Cons

👍 Pros

  • Equipped with an NVIDIA Mellanox ConnectX-6 Dx controller, ensuring high-performance networking capabilities.
  • Features dual 100GbE ports, supporting a wide range of speeds from 1Gbps to 100Gbps for versatile connectivity.
  • Leverages PCIe Gen 4 x16, offering high bandwidth and backward compatibility with PCIe 3.0 x16 slots.
  • Supports Port Trunking, allowing both ports to combine for transfer speeds up to 200 Gbps, ideal for intensive data sharing.
  • Includes SR-IOV support, allocating bandwidth directly to VMs, which reduces CPU overhead and enhances virtual machine performance.

👎 Cons

  • The full potential of 100GbE speeds requires compatible networking infrastructure, which can be a significant investment.
  • Requires a PCIe Gen 4 x16 slot for maximum performance, though it is compatible with PCIe 3.0 x16 at reduced speeds.
  • While it supports QTS, QuTS hero, Windows, and Linux OS, specific driver installation and configuration may be complex for novice users.
  • The specialized nature of a 100GbE adapter means it is an overkill solution for most home or small office network needs.
  • RoCE support is primarily beneficial for VMware virtualization environments, limiting its direct impact for other users.

Frequently Asked Questions

The QNAP QXG-100G2SF-CX6 network adapter is equipped with an NVIDIA Mellanox ConnectX-6 Dx controller.
This dual-port adapter supports a wide range of network speeds, including 1Gbps, 10Gbps, 25Gbps, 40Gbps, 50Gbps, and 100Gbps.
Yes, it supports SR-IOV, which can allocate bandwidth resources directly from the network card to virtual machines, reducing CPU overheads and ensuring reliable VM applications.
The QNAP QXG-100G2SF-CX6 supports QNAP's QTS, QuTS hero, as well as Windows and Linux operating systems.
Yes, it supports Port Trunking, allowing you to combine both ports to achieve transfer speeds of up to 200 Gbps for accelerating intensive data transfers.

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