Cisco

Cisco QDD-4ZQ100-CU2M | 400G->4x100G | QSFP-DD to 4x QSFP56 | 100GBASE-CR2 | passive copper DAC | 2m reach | connectors: QSFP-DD/QSFP56

SKU:QDD-4ZQ100-CU2M

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Description

Low-latency passive copper breakout cable to split a 400G QSFP-DD port into four 100G CR2 links using QSFP56 connectors. Eliminates the need for optical modules for short in-rack and row-level connections. Verify support for 4x100G breakout on the 400G port and 100GBASE-CR2 on the remote devices.

Features

- Efficient 400G to four 100G breakout connectivity
- Zero-power passive design and ultra-low latency
- 100GBASE-CR2 signaling on each breakout leg
- Durable twinax construction for data center environments
- Tool-free QSFP latching mechanism
- Cost-saving versus optical transceiver links at short distances

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: What is the cable length?
A: 2 meters.

Q: Do I need optics at either end?
A: No, this is a passive DAC with integrated QSFP-DD and QSFP56 ends.

Q: Can I connect to devices with QSFP28 100G ports?
A: Only if those ports support QSFP56/100GBASE-CR2 operation; QSFP28 CR4-only ports are not supported.

Q: Is it suitable for in-rack connections?
A: Yes, it is ideal for short in-rack and adjacent rack links.

Q: Does it consume power?
A: No, as a passive DAC it draws no power.

Technical Specifications

- Cable type: Passive Direct Attach Copper (Twinax) DAC
- Aggregate data rate: 400Gbps
- Breakout configuration: 4 x 100Gbps
- Host form factor: QSFP-DD (400G)
- Remote form factor: 4 x QSFP56 (100G each)
- Ethernet standard on breakouts: 100GBASE-CR2
- Reach: 2 meters
- Power consumption: 0 W (passive)
- Latency: Near-zero
- Connector interface: QSFP-DD to 4x QSFP56
- Typical use: 400G switch port to four 100G switch/NIC ports
- Compatibility: Requires 400G QSFP-DD port supporting 4x100G breakout and 100G QSFP56 (CR2) ports on peers
- Medium: Shielded copper twinax

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