QNAP QXG-25G2SF-CX6 Dual-Port 25GbE Network Card

Advanced Networking for Virtualization and Data Centers

Elevate Your Network with QXG-25G2SF-CX6

The QNAP QXG-25G2SF-CX6 is a high-performance network expansion card featuring the NVIDIA Mellanox® ConnectX®-6 Lx SmartNIC controller. It supports PCIe Gen4 (backward compatible with Gen3/Gen2) and offers up to 25 Gbps transfer speeds. This card is ideal for I/O-intensive and latency-sensitive applications in virtualization environments and data centers.

Key Features

High-Speed 25GbE Networking

• Delivers up to 25 Gbps transfer speeds, supporting 10/25Gbps for fast and efficient networking.

Port Trunking for Enhanced Bandwidth

• Combines multiple ports to achieve up to 50GbE, accelerating file sharing and intensive data transfer.

SR-IOV Support for Virtualization

• Allocates bandwidth resources directly to VMs, ensuring reliable applications and reduced CPU overheads.

RoCE Support for VMware® Virtualization

• Enables direct network access in RAM, reducing latency and enhancing performance in VMware® environments.

Forward Error Correction (FEC) for Reliable Data Transfer

• Supports FEC to overcome packet loss in fast, long-distance networks, ensuring reliable data transmission.

Broad Compatibility

• Compatible with specific QNAP NAS models, Windows® 10, Windows Server®, and Linux® (driver required), making it versatile for various system applications.

FEC Modes for Different Network Needs

• NO FEC: Lowest latency, ideal for shortest distances.
• BASE-R FEC (Firecode): Approximately 80ns latency, suitable for middle distances.
• RS-FEC (Reed Solomon): Approximately 260ns latency, best for the longest distances.

Notes for Optimal Setup

1. FEC Mode Compatibility: Ensure both the source and receiver use the same FEC mode.
2. Switch Compatibility: Check if your switch's firmware supports FEC. If not, disable the FEC function on the NIC through the NAS or computer operating system.

Summary

The QNAP QXG-25G2SF-CX6 network expansion card is a powerful solution for enhancing network performance in virtualization environments and data centers. Its combination of high-speed connectivity, SR-IOV, RoCE support, and FEC makes it an ideal choice for demanding network environments, ensuring fast, efficient, and reliable data transfer.