Dual-port 25G SFP28 NIC with Huawei Hi1822 chip, supporting RoCEv2 and DPDK.
When network congestion causes application timeouts in AI training clusters, every microsecond of latency matters. The SP681 PCIe 3.0 x8 dual-port 25G SFP28 Network Adapter addresses this by delivering low-latency connectivity essential for modern cloud computing and data center environments.
Powered by the Huawei HiSilicon Hi1822 controller, this adapter provides two 25GbE SFP28 ports, enabling 50Gbps aggregate bandwidth. This eliminates storage and network bottlenecks in high-throughput servers. Support for RDMA (RoCEv2) reduces CPU load by bypassing kernel intervention, while Flow Director ensures accurate load balancing for critical services.
Ideal for internet cloud services and enterprise data centers, the SP681 leverages Huawei HiSilicon technology to maximize data plane efficiency. With DPDK support and MCTP out-of-band management, it offers superior control and throughput for demanding virtualized workloads.
Dual-port 25Gbps SFP28 interfaces provide high bandwidth for data center networks.
Based on Huawei HiSilicon Hi1822 chip for reliable performance and efficiency.
Supports RDMA (RoCEv2) to reduce CPU load and latency by bypassing kernel intervention.
Supports DPDK to greatly improve data processing performance and throughput.
Flow Director enables accurate flow control and load balancing for optimized traffic management.
Supports MCTP for efficient remote management and control in server environments.
High-quality optical modules and cables for optimal compatibility with your network adapter.
Complete technical details for integration and deployment planning.
| Main Control Chip | Huawei HiSilicon Hi1822 |
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| Bus Type | PCIe 3.0 x8 |
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| Connector | 2* SFP28 |
| Link Speed | 25G/10Gbps |
| Cable Medium | Fiber |
| Min Power | 15.5W |
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| Max Power | 18W |
| Power Supply | PCIe |
| IEEE Standards | IEEE 802.3ap, IEEE 802.3ad (LACP), IEEE 802.1Q/802.1P, IEEE 802.1Qaz (ETS), IEEE 802.1Qbb (PFC), IEEE 802.1Qbg, IEEE 802.1BR |
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| Supported Features | RDMA (RoCEv2), Flow Director, MCTP, DPDK, SR-IOV, VXLAN, NCSI, Jumbo Frame, PXE, UEFI |
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| Operating Temperature | 5°C to 45 °C |
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| Storage Temperature | -40 °C to 65 °C |
| Operating Humidity | 8% RH to 90% RH (non-condensing) |
| Storage Humidity | 8% RH to 90% RH (non-condensing) |
| Dimension | 18.71mm * 111.15mm * 167.65mm |
| Weight | 950g |
| Bracket Height | Full Height/Half Height |
| Certification | FCC, CE, RoHS |
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