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Cisco

Cisco UCSC-P-N6D25GFO | 2x25GbE SFP28 | PCIe Gen4/3 x8, LP | SR-IOV, RoCE v2 | VXLAN/GRE offloads | PTP | PXE/UEFI | Jumbo 9K

SKU:UCSC-P-N6D25GFO

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Description

Dual-port 25GbE SFP28 adapter optimized for dense virtualization and leaf/spine access. Delivers low latency with RoCE v2, rich offloads for overlay networks, and efficient CPU utilization. Ideal for 10/25GbE ToR connectivity with flexible SFP28 optics or DAC/AOC.

Features

- Dual 25GbE for efficient server access and spine/leaf connectivity
- Low-latency RoCE v2 and advanced offloads reduce CPU overhead
- SR-IOV for high-density virtualized workloads
- Overlay offload support for VXLAN/NVGRE tunneling
- Flexible optics and DAC/AOC options via SFP28 cages
- PTP hardware timestamping for accurate time synchronization

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Is this adapter compatible with 10GbE?
A: Yes, with SFP+ or 10GbE-capable SFP28 modules/cables, the ports can operate at 10GbE.

Q: What PCIe slot do I need?
A: A PCIe x8 slot is required; Gen4 is recommended for maximum performance, but Gen3 is supported.

Q: Does it support SR-IOV?
A: Yes, SR-IOV is supported for virtualized environments.

Q: Can I boot from the network?
A: Yes, PXE and UEFI network boot are supported.

Q: Which cables and modules are supported?
A: SFP28 25G optics, SFP28 DAC/AOC, and backward-compatible SFP+ 10G modules are supported (subject to firmware and platform qualification).

Q: Does it support RoCE?
A: Yes, RDMA over Converged Ethernet (RoCE v2) is supported.

Technical Specifications

- Ports: 2 x 25GbE
- Port form factor: SFP28 (supports 25/10/1GbE with appropriate modules)
- PCIe interface: PCIe Gen4/Gen3 x8
- Form factor: Low-profile (LP) add-in card
- Networking offloads: RoCE v2, TSO/LRO, RSS, checksum offloads
- Overlay offloads: VXLAN, NVGRE (driver/firmware dependent)
- Virtualization: SR-IOV, multiple VFs
- Storage networking: NVMe-oF over RDMA/TCP (OS/driver dependent)
- Time sync: IEEE 1588 PTP hardware timestamping
- Boot options: PXE and UEFI
- Jumbo frames: up to 9K MTU
- Cabling: SFP28 25G SR/LR optics, SFP28 DAC/AOC; backward compatible with SFP+ 10G
- Power consumption: typically ≤8W (configuration dependent)
- Operating systems: Major Linux, Windows Server, VMware ESXi (driver dependent)

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