ALL NAS MODELS WITH A PCIE SLOT. FOLLOW THE COMPATIBILITY GUIDE: HTTPS://WWW.QNA

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Key Features

Supports optical fiber cable to span longer distances and provides data transmission rates par excellence between servers and network components
The PCI Express 4.0 x8 interface provides smooth data transfer and outstanding performance
25Gigabit Ethernet Card guarantees a faster and efficient networking interface to client, server or workstation with maximum connectivity reliability

Manuals & Resources

MANUAL User Manual › DATASHEET Product Datasheet › BROCHURE Manufacturer Brochure › MANUAL Assembly Instructions › WARRANTY Warranty Information › DATASHEET Product Fiche › GUIDE Energy Guide › SAFETY Safety Data Sheet › SAFETY Safety Data Sheet (FR) › SAFETY COSHH Sheet › TOUR Product Tour › 360 360° Product View ›

QNAP INC Network Interface Cards

ALL NAS MODELS WITH A PCIE SLOT. FOLLOW THE COMPATIBILITY GUIDE: HTTPS://WWW.QNA

Mfr # QXG-25G2SF-BCM SKU 15260927 UPC 885022024407

$461.79 MSRP $499.00 Save 7%

Regular price saves you $37.21 against MSRP.

Available

Product Overview

ALL NAS MODELS WITH A PCIE SLOT. FOLLOW THE COMPATIBILITY GUIDE: HTTPS://WWW.QNA

DUAL PORT PER 25GBE NETWORK ADAPTER 2 X SFP28 BROADCOM 57504
QNAP QXG-25G2SF-BCM Dual-port, 25 GbE Network Expansion Card - PCI Express 4.0 x8 - 50 Gbit/s Data Transfer Rate - Optical Fiber - Low-profile bracket, full-height Bracket Height - SFP28 - Plug-in Card
QNAP QXG-25G2SF-BCM Dual-port, 25 GbE Network Expansion Card
PCI Express 4.0 x8 - 50 Gbit/s Data Transfer Rate - Optical Fiber - Low-profile bracket, full-height Bracket Height - SFP28 - Plug-in Card

Technical Specifications

Host Interface	PCI Express 4.0 x8
Product Type	25Gigabit Ethernet Card
Device Supported	NAS Storage Device
Device Supported	PC
Manufacturer Part Number	QXG-25G2SF-BCM
Packaged Quantity	1
Features	Single Root I/O Virtualization (SR-IOV)
Features	RDMA over Converged Ethernet (RoCE)
Features	VLAN Support
Features	iSCSI Extensions over RDMA (iSER)
Features	Network Virtualization using Generic Routing Encapsulation (NVGRE)
Features	Virtual Extensible LAN (VXLAN)
Features	Generic Network Virtualization Encapsulation (GENEVE)
Form Factor	Plug-in Card
Manufacturer	QNAP Systems
Product Model	QXG-25G2SF-BCM
Product Name	QXG-25G2SF-BCM Dual-port, 25 GbE Network Expansion Card
Brand Name	QNAP
Expansion Slot Type	SFP28
Depth	7.3"
Maximum Data Transfer Rate	50 Gbit/s
Media Type Supported	Optical Fiber
Total Number of Expansion Slots	2
Bracket Height	Low-profile bracket, full-height
Ethernet Controller Manufacturer	Broadcom
Ethernet Controller Model	57502

Marketing Information

The QXG-25G2SF-BCM 25 GbE network expansion card, supports PCIe 4.0 and provides up to 50Gbps total throughput to overcome performance bottlenecks. Supporting offload functionality including RDMA and SR-IOV, the QXG-25G2SF-BCM greatly boosts network efficiency and is ideal for I/O-intensive and latency-sensitive virtualization and data centers. The QXG-25G2SF-BCM is a perfect match for all-flash storage to realize the highest performance potential for ever-demanding IT challenges.

NAS and PC

The QXG-25G2SF-BCM can be installed in a QNAP NAS or Windows® PC.

PCIe 4.0

PCIe Gen 4 x8 provides up to 50 Gbps transfer speeds.

SR-IOV

Improves the network performance of virtual machines.

RDMA (RoCE)

Reduces latency, lowers CPU utilization, and boosts overall throughput

Compatible with NAS and PC

The QXG-25G2SF-BCM network expansion card supports QNAP NAS, Windows®, and Linux® devices, allowing you to maximize the performance potential of all your networked devices.

NAS operating system: QTS 5.2.4 (and later), QuTS hero h5.2.4 (and later). Check compatibility list
Windows®: Windows® 11 24H2, Windows Server® 2022 / 2025 (driver required)
Linux®: Ubuntu® 20.04 LTS (driver required)

Gain up to 50 Gbps connectivity

By virtually bundling two 25 GbE ports with SMB multichannel or port trunking, you gain larger bandwidth for your QNAP NAS. Let's see which features are suitable for your usage scenarios:

SMB Multichannel: Multiply the available bandwidth (50Gbps) between NAS and directly-connected clients. Suited for personal use.
Port trunking: Increases file access efficiency for simultaneous data access with multiple members. Recommended for users who deploy network switches in their IT infrastructure.

Strengthen your virtualization environment with SR-IOV

The QXG-25G2SF-BCM supports SR-IOV, which can allocate bandwidth resources from a physical network card directly to VMs on the NAS. It helps improve network efficiency, ensuring reliable VM applications and reduced CPU overheads.

Supports RoCE for Reduced Latency and Enhanced Performance for VM Environments

The QXG-25G2SF-BCM supports RoCE, which can access a network directly in RAM to effectively reduce latency and enhance performance and efficiency for VMware® virtualization environments.

Build a 25 GbE network environment

Increase your IT performance and productivity by using the QXG-25G2SF-BCM with QNAP's switch, making it easier than ever to deploy a blazing-fast 100GbE network for your business.