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Cisco

Cisco SFP-50G-CU1.5M | 50G | SFP56 | 50GBASE-CR | passive copper | 1.5m | SFP56-to-SFP56

SKU:SFP-50G-CU1.5M

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Description

SFP56 50GbE direct-attach copper (DAC) twinax cable for short-reach, ultra‑low‑latency links between SFP56 switch, router, and NIC ports. Passive design eliminates separate optics and minimizes power and heat. Ideal for top‑of‑rack server uplinks and 50G interconnects in dense environments.

Features

- Ultra‑low latency copper link for 50GbE
- Simple plug‑and‑play with integrated SFP56 ends
- No separate optics needed—cost and power savings
- Robust twinax construction for reliable EMI performance
- Optimized for short-reach in-rack deployments

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 cable active or passive?
A: It is a passive twinax direct-attach copper (DAC) cable.

Q: Do I need separate transceiver modules?
A: No. The DAC has integrated SFP56 connectors—no separate optics are required.

Q: What is the supported distance?
A: The reach is the cable length itself: 1.5 meters.

Q: Will this work at 25G in SFP28 ports?
A: It is designed for 50G SFP56 ports. Some devices may support downshift, but check your device documentation for confirmation.

Q: Can I use this for switch stacking or uplinks?
A: Yes, if the ports are SFP56 50G and the platform supports DAC for stacking/uplinks.

Technical Specifications

- Data rate: 50GbE (50GBASE-CR, PAM4)
- Form factor: SFP56 on both ends
- Cable type: Passive twinax DAC (direct-attach copper)
- Length: 1.5 meters
- Interface compatibility: SFP56 50G ports on switches, routers, and NICs
- Power: Passive, ultra-low power and latency
- Use case: Short-reach in-rack/inter-rack connections

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