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Cisco

Cisco QSFP-100G-CU2.5M | 100G QSFP28 DAC | 100GBASE-CR4 passive twinax | 2.5m reach | QSFP28–QSFP28

SKU:QSFP-100G-CU2.5M

Stock Status: Enquire

Regular price $467.50 AUD
Regular price
$467.50 AUD
$467.50 AUD
Regular price
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Condition

Description

Flexible 2.5-meter 100G direct-attach copper cable for short-reach switch and server interconnects. Built to the 100GBASE-CR4 specification, this passive QSFP28-to-QSFP28 DAC delivers near-zero latency and requires no external power, simplifying deployment and lowering cost.

Features

- 100GBASE-CR4 standards compliance
- Passive design for zero power and minimal heat
- Ultra-low latency copper interconnect
- Reliable short-reach performance up to 2.5 m
- Cost-effective alternative to optical transceivers

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 distances does this cable support?
A: This unit is 2.5 m. Passive QSFP28 DACs typically support lengths up to around 5 m depending on host signal characteristics.

Q: Do I need special configuration?
A: Usually no. Insert both ends into QSFP28 100G ports that support passive DAC and the link should come up automatically.

Q: Is it suitable for data center leaf–spine fabrics?
A: Yes. It is designed for short-reach, high-density fabrics where low latency and low power are priorities.

Q: Can it be used for breakout applications?
A: No. Use a specific QSFP28 to 4xSFP28 breakout DAC/AOC for breakout needs.

Q: Is it an optical transceiver?
A: No. It is a passive copper twinax cable with integrated QSFP28 connectors.

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: 2.5 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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