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Cisco

Cisco QSFP-100G-CU1M | 100G QSFP28 DAC | 100GBASE-CR4 passive twinax | 1m reach | QSFP28–QSFP28

SKU:QSFP-100G-CU1M

Stock Status: Enquire

Regular price $401.50 AUD
Regular price
$401.50 AUD
$401.50 AUD
Regular price
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Condition

Description

Compact 1-meter 100G direct-attach copper cable for ultra-low-latency, zero-power links between QSFP28 ports. Conforms to 100GBASE-CR4 for reliable, standards-based interoperability in top-of-rack and leaf–spine designs. Ideal for in-rack switch-to-server/switch connections.

Features

- Standards-based 100GBASE-CR4 interoperability
- Zero power consumption with passive twinax
- Ultra-low latency for performance-critical links
- Simple, robust, and cost-effective
- Ideal for dense ToR and leaf–spine fabrics

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 it suitable for very short in-rack runs?
A: Yes. The 1 m passive DAC is ideal for in-rack switch-to-server and switch-to-switch connections.

Q: Does this require transceiver modules?
A: No. It has integrated QSFP28 connectors—no separate optical transceivers are needed.

Q: Can it be used for 4x25G breakout?
A: No. This is a straight 100G QSFP28-to-QSFP28 cable. Use a QSFP28 to 4xSFP28 breakout cable for that purpose.

Q: Is this copper or fiber?
A: Copper twinax. It is a passive DAC, not a fiber optic cable.

Q: Will it work across vendors?
A: It follows MSA standards, but some devices enforce vendor coding. Check your platform’s compatibility list.

Technical Specifications

- Data rate: 100 Gb/s (4 x 25G lanes)
- Standard: 100GBASE-CR4 (IEEE 802.3bj)
- Form factor: QSFP28 DAC
- Cable type: Passive twinax copper
- Length: 1 m
- Connectors: QSFP28 male to QSFP28 male
- Power: Passive, no external power consumption
- Latency: Near-zero, physical copper interconnect
- Compatibility: QSFP28 100G ports supporting passive DAC (MSA-compliant)
- Use cases: ToR, leaf–spine, switch-to-switch/server short-reach links
- Compliance: RoHS

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