Arista

Arista CAB-D-8S-200G-2M | 200G breakout 8x25G | passive DAC twinax | 200GBASE-CR8 / 25GBASE-CR | copper (no wavelength) | 2m | QSFP-DD to 8x SFP28

Arista CAB-D-8S-200G-2M | 200G breakout 8x25G | passive DAC twinax | 200GBASE-CR8 / 25GBASE-CR | copper (no wavelength) | 2m | QSFP-DD to 8x SFP28

SKU:CAB-D-8S-200G-2M

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Description

200G passive twinax DAC breakout cable that splits a QSFP‑DD port into eight independent 25G links for flexible, low‑cost connectivity in dense racks. Delivers low latency and zero power usage; ideal for short‑reach topologies. Ensure the host supports 8×25G breakout and matching cable coding prior to deployment.

Features

- Breaks out one 200G QSFP‑DD to eight 25G SFP28 links
- Passive design: no power, minimal latency
- Reliable signal integrity over 2 m copper
- Standards‑aligned 200GBASE‑CR8 / 25GBASE‑CR
- Hot‑pluggable with secure latching
- Optimized for dense, short‑reach 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 any configuration needed on the switch?
A: Yes. Enable 8×25G breakout on the QSFP‑DD port and confirm the cable’s coding compatibility.

Q: Can I use this instead of optics for short links?
A: Yes. Passive DACs are a cost‑effective, low‑latency alternative for short‑reach connections.

Q: Does the cable add latency?
A: Latency is negligible compared to optical transceivers, making DAC ideal for intra‑rack links.

Technical Specifications

- Aggregate speed: 200G (breakout to 8×25G)
- Lane rate/encoding: 25G NRZ per lane
- Form factor ends: QSFP‑DD to 8× SFP28
- Cable type: Passive twinax DAC (copper)
- Standards: 200GBASE‑CR8, 25GBASE‑CR; IEEE 802.3 compliant
- Reach: 2 meters
- Power: 0 W (passive), ultra‑low latency
- Use case: QSFP‑DD 200G port breaking out to 8× 25G switch/server NIC ports

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