QXG-10G4SF-BCM
Quad-port, 10 GbE network expansion card
The QXG-10G4SF-BCM 10 GbE network expansion card features four SFP+ ports and PCIe 4.0 connectivity, delivering up to 40Gbps aggregate bandwidth to eliminate performance bottlenecks. With support for advanced offload technologies including RDMA and SR-IOV, it significantly enhances network efficiency and is well-suited for I/O-intensive and latency-sensitive virtualization and data center environments. Designed as a powerful companion for all-flash storage, the QXG-10G4SF-BCM helps unleash maximum system performance to meet the ever-increasing demands of modern IT workloads.
NAS and PC
The QXG-10G4SF-BCM can be installed in a QNAP NAS or Windows® PC.
PCIe 4.0
PCIe Gen 4 x8 provides up to 128 Gbps transfer speeds.
SR-IOV
Improves the network performance of virtual machines.
RDMA (RoCE & iSER)
Reduces latency, lowers CPU utilization, and boosts overall throughput
Link Aggregation (LAG)
Combines multiple ports for higher bandwidth, load balancing, and network redundancy
Enterprise-Grade Reliability
Delivers consistent performance with advanced controller-level efficiency
Build a 10GbE network environment
Use the QXG-10G4SF-BCM with QNAP’s 10GbE switches to build budget-friendly high-speed network environments.
Gain up to 40 Gbps connectivity & Support Link Aggregation
With QXG-10G4SF-BCM’s four 10GbE SFP+ ports, you can aggregate bandwidth using SMB multichannel or port trunking, achieving up to 40 Gbps total throughput for your NAS. Ideal for high-speed file access and multi-user environments:
• SMB Multichannel: Multiply the available bandwidth (40 Gbps) 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.
Learn More: SMB 3.0 Multichannel
Note: SMB multichannel is supported by QTS 5.1/QuTS hero 5.1 (or later).
Compatible with NAS and PC
The QXG-10G4SF-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: 5.2.6 (and later), QuTS hero h5.2.6 (and later). Check compatibility list
• Windows®: Windows: 11® 25H2, Windows Server 2022/2025 (driver required)
• Linux®: Ubuntu® 20.04 LTS (driver required)
Strengthen your virtualization environment with SR-IOV
The QXG-10G4SF-BCM supports SR-IOV, which can allocate bandwidth resources from a physical network card directly to VMs on the NAS. It ensures reliable VM applications and reduced CPU overheads.
Note: SR-IOV is supported by specific QNAP NAS models and should work with SR-IOV compatible adapters. Click here to check supported NAS models.
Supports RDMA for Reduced Latency and Enhanced Performance for VM Environments
The QXG-10G4SF-BCM supports RDMA, enabling direct memory access over the network to significantly reduce latency and improve performance and efficiency for VMware® virtualization environments.
Fully unleash your network with a companion switch
Build your ideal network environment to satisfy connectivity demands and streamline various storage applications.
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Can’t find the right switch for your NAS? Let us help you select the right one.
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Optional Accessories
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TRX-10GITSFPP-SR
Optical Transceiver 10GbE SFP+ 850nm SR up to 300m industrial-temperature(-40~85°C )
Dimension (L × W × H): 59.8 × 14 × 12 (mm)
Weight: 0.08 (kg)
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CAB-DAC15M-SFPP
SFP+ 10GbE twinaxial direct attach cable, 1.5M
Dimension (L × W × H): 10 × 240 × 295 (mm)
This 10GbE SFP+ network cable is designed for NAS models with an integrated 10GbE SFP+ LAN port or a 10GbE SFP+ network card.
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CAB-DAC30M-SFPP
SFP+ 10GbE twinaxial direct attach cable, 3.0M
This 10GbE SFP+ network cable is designed for NAS models with an integrated 10GbE SFP+ LAN port or a 10GbE SFP+ network card.
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CAB-DAC50M-SFPP
SFP+ 10GbE twinaxial direct attach cable, 5.0M
This 10GbE SFP+ network cable is designed for NAS models with an integrated 10GbE SFP+ LAN port or a 10GbE SFP+ network card.
