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®...
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.
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.
- 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
- FEC Mode Compatibility: Ensure both the source and receiver use the same FEC mode.
- 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.
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.
|Dual-port 25 GbE network expansion card
|Dimensions (L x W x H)
|117.33 mm length × 1-slot width × Low-profile (PCBA size, excluding bracket) mm
|CAB-DAC30M-SFP28, CAB-DAC15M-SFP28, TRX-25GSFP28-SR
|NVIDIA Mellanox ConnectX-6 Lx
|Number of Ports
|2 x SFP28
|PCIe and Lanes
|PCIe Gen4 x8
|IEEE 802.3ae, 802.3by, 802.3ad, 802.1AX, 802.3az, 802.3ap, 802.1Q, 802.1P, 802.1Qaz
|Low-profile bracket pre-installed; full-height and specialized brackets bundled
|RoCE & ZTR Support
|RDMA over Converged Ethernet, Zero Touch RoCE
|NVGRE, VXLAN, Geneve Support
|Physical Functions per Host
|Compatibility and Requirements
|Supported NAS Operating Systems
|QTS/QuTS hero (latest version recommended); Windows (Driver required); Linux (Driver required)
|Supported QNAP NAS
|Models with PCIe slot(s) (1 free slot required)
|Support Ubuntu Commercial Linux Distribution
|Support Windows Server
|Windows Server 2016/2019
|Port and Cable
|SFP28 DAC cable (3M) or SFP28 OPTIC transceiver
|1 x Network card, 1 x QIG, 3 x Brackets