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QNAP QXG-25G2SF-BCM Dual-port SFP28 25GbE PCIe Gen4 x8 Network Expansion Card
3 Years
Features
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.
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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
Specifications
| Dimensions (L x W x H) | 186 mm length × 1-slot width × Low-profile (The dimension is based on PCBA size × not including the bracket) mm |
| Controller | Broadcom 57502 |
| Number of Ports | 2 x SFP28 |
| Connector | SFP28 |
| PCIe and Lanes | PCIe Gen4 x8 |
| Transmission Rates | 25Gbps/10Gbps |
| IEEE Standards | IEEE 802.3az IEEE 802.1Q IEEE 802.3x IEEE 802.1p IEEE 802.3ad IEEE 802.3ae IEEE 1588 IEEE 802.1as |
| Bracket | Low-profile bracket pre-installed; full-height and specialized (for selected QNAP NAS) brackets are bundled |
| SR-IOV Support | Yes |
| RDMA over Converged Ethernet (RoCE), Zero Touch RoCE (ZTR) Support | Yes |
| VLAN insertion/stripping Support | Yes |
| iSER Support | Yes |
| NVGRE, VXLAN, Geneve Support | Yes |
| How mant virtual functions | 512 |
| How many physical functions per host | 8 |
| Supported NAS operating systems | QTS / QuTS 5.2.4 or later |
| Supported QNAP NAS | Models with PCIe slot(s) (1 free slot required) |
| Support Ubuntu Commercial Linux Distribution | Ubuntu 20.04 |
| Support Windows | Windows 11 |
| Support Windows Server | Windows Server 2022/2025 |
| Port and Cable | SFP28 DAC cable (3M) or SFP28 OPTIC transceiver |
| Package Contents | 1 x Network card; 1 x QIG; 3 x Brackets |
| Standard Warranty | 3 years |
Product images are for illustrative purposes only and may differ from the actual product. Due to differences in monitors, colors of products may also appear different to those shown on the site.
Designs and specifications are subject to change without notice.
Datasheet
Accessories
QNAP CAB-DAC30M-SFPP SFP+ 10GbE Twinaxial Direct Attach Cable 3.0m
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QNAP CAB-DAC15M-SFP28 - SFP28 25GbE Twinaxial Direct Attach Cable 1.5m
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QNAP CAB-DAC30M-SFP28 - SFP28 25GbE Twinaxial Direct Attach Cable 3m
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