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Cisco

Cisco SFP-50G-CU2.5M | 50G | SFP56 | 50GBASE-CR | passive copper | 2.5m | SFP56-to-SFP56

SKU:SFP-50G-CU2.5M

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Description

SFP56 50GbE direct-attach copper (DAC) twinax cable for efficient, short‑reach connections between SFP56 switch, router, and NIC ports. Passive copper minimizes power and latency while extending reach to 2.5m—suited for adjacent-rack links and flexible layouts.

Features

- Extended short‑reach option at 2.5m
- Minimal latency and power via passive copper
- Cost‑saving alternative to optical transceivers
- SFP56 plug‑and‑play terminations
- Durable twinax construction for EMI resilience

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 an active or passive cable?
A: It is a passive twinax DAC.

Q: Are separate optics needed?
A: No, the SFP56 connectors are integrated into the DAC cable.

Q: What distance does it support?
A: The effective reach is the cable length: 2.5 meters.

Q: Will it work at 25G speeds?
A: It targets 50G SFP56 ports. Some systems may support downshift; consult your platform documentation.

Q: Suitable for switch stacking?
A: If your platform supports SFP56 50G DAC for stacking, it can be used accordingly.

Technical Specifications

- Data rate: 50GbE (50GBASE-CR, PAM4)
- Form factor: SFP56 on both ends
- Cable type: Passive twinax DAC (direct-attach copper)
- Length: 2.5 meters
- Interface compatibility: SFP56 50G ports on switches, routers, and NICs
- Power: Passive, ultra-low power and latency
- Use case: Short inter-rack and lab connections

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