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Cisco

Cisco SFP-50G-CU1M | 50G | SFP56 | 50GBASE-CR | passive copper | 1m | SFP56-to-SFP56

SKU:SFP-50G-CU1M

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Description

SFP56 50GbE direct-attach copper (DAC) twinax cable engineered for short, high‑performance links between SFP56 switch, router, and NIC ports. Passive design cuts cost, power, and heat while delivering minimal latency—ideal for top‑of‑rack server connectivity and 50G interconnects.

Features

- Cost‑effective 50G connectivity without separate optics
- Low power, low latency passive copper design
- Plug‑and‑play SFP56 terminations
- Reliable EMI performance with twinax construction
- Ideal 1m length for clean in‑rack routing

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 meter.

Q: Is it compatible with SFP28 25G ports?
A: It is designed for 50G SFP56 ports. Some platforms may allow speed downshift—verify in your device documentation.

Q: Typical use cases?
A: Top‑of‑rack server uplinks, switch‑to‑switch short interconnects, and lab environments.

Technical Specifications

- Data rate: 50GbE (50GBASE-CR, PAM4)
- Form factor: SFP56 on both ends
- Cable type: Passive twinax DAC (direct-attach copper)
- Length: 1 meter
- 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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