Dual-port 25GbE SFP28 Ethernet network adapter , OCP 3.0 SFF, PCIe 4.0 x8, supports RoCEv2, NVMe-oF.
As data center traffic surges and CPU overhead from software‑defined networking strains server performance, hardware offloading becomes essential to sustain application throughput. The LRES4164PF-2SFP28 dual‑port 25G Ethernet adapter directly tackles this challenge by moving packet processing and storage protocols to dedicated silicon, freeing host CPUs for revenue‑generating workloads.
With dual SFP28 cages delivering up to 50Gbps aggregate bandwidth over PCIe 4.0 x8, the card eliminates east‑west bottlenecks in virtualized and containerized environments. Hardware‑accelerated OVS datapath offload, RoCE v2 RDMA, and NVMe‑oF target support significantly reduce latency and boost IOPS, enabling efficient scaling of distributed storage and NFV services.
The adapter’s compact OCP 3.0 SFF design fits standard server sleds, simplifying deployment in cloud, Web 2.0, and carrier‑grade infrastructures. Rich feature support—including SR‑IOV, VXLAN/Geneve offloads, PXE/UEFI, and precision time protocol—provides the flexibility needed for next‑generation software‑defined data centers. By consolidating network and storage acceleration onto a single OCP card, the LRES4164PF-2SFP28 maximizes rack density and reduces total cost of ownership.
Delivers up to 50Gbps aggregate bandwidth for data-intensive workloads.
Supports 25/10/1Gbps link speeds with flexible connectivity.
Compact SFF design for standardized OCP 3.0 server sleds.
Hardware RDMA and storage acceleration for low-latency and high IOPS.
OVS, VirtIO, VXLAN, NVGRE, and Geneve offloads reduce CPU overhead.
SR-IOV, multi-queue, and flow classification for virtualized networks.
Complete technical details for integration and deployment planning.
| Adapter Type | OCP 3.0 |
|---|---|
| Form Factor | SFF |
| Host Connector | PCIe 4.0 x8 |
| Connectors | SFP28 |
|---|---|
| Port | Dual |
| Link Speed | 1/10/25Gbps |
| IEEE Standards | IEEE 802.3by, IEEE 802.3ae, IEEE 802.3ab, IEEE 802.3x, IEEE 802.1Qbb, IEEE 802.1Qaz, IEEE 802.1Qau, IEEE 802.1Q, IEEE 802.1p, IEEE 1588v2, IEEE 802.3az |
|---|---|
| Supported Physical Layer Interfaces | 25GBASE-R, 10GBASE-LR, 10GBASE-ER, 10GBASE-CX4, 10GBASE-CR, 1000BASE-CX, 10GBASE-SR, 25GBASE-KR, 25GBASE-CR, 10GBASE-R, 10GBASE-KR, 10GBASE-SR, 10GBASE-CR, 10GBASE-LR, SGMII, 1000BASE-X, 1000BASE-KX, 1000BASE-CX |
| Feature Support (Yes) | PXE/UEFI, RoCEv2, NVMe-oF, NCSI, WoL, SR-IOV, 1588 PTP, SMbus, ScanChain, Jumbo Frames (9.2KB) |
|---|---|
| Feature Support (No) |
| DAC | * |
|---|---|
| Optical Transceiver | 13.4W (Max) |
| Off | No Link |
|---|---|
| Link (Amber) | Link at lower speed |
| Link (Green) | Link at 25Gbps |
| Activity Off | No Activity |
| Activity Green (blink) | Link up (traffic flowing) |
| OS | Windows, NFSOS, Deepin, WindowsServer, RHEL/CentOS, OpenKylin, Ubuntu, OpenEuler, FusionOS, AIce, KylinOS, ATL Server, FreeBSD, VMware, iKuai Router, Debian, NewStartOS, SUSE, REDOS |
|---|
| Operating Temperature | -10°C to 60°C |
|---|---|
| Storage Temperature | -40°C to 70°C |
| Storage Humidity | Maximum: 90% non-condensing relative humidity at 35°C |
| Adapter Size | 115*76mm |
|---|---|
| Package Size | 179*150*30mm |
| Certification | FCC, CE, RoHS |
|---|
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