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Arista

Arista CAB-Q-Q-100G-1M | 100G QSFP28 DAC, 100GBASE-CR4, QSFP28-to-QSFP28, passive Twinax, 1m reach

Arista CAB-Q-Q-100G-1M | 100G QSFP28 DAC, 100GBASE-CR4, QSFP28-to-QSFP28, passive Twinax, 1m reach

SKU:CAB-Q-Q-100G-1M

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Description

High-performance 100GBASE-CR4 direct-attach copper (DAC) cable with QSFP28 connectors on both ends for ultra-low-latency, short-reach 100G links in racks or adjacent racks. MSA-compliant and plug-and-play for switches, routers, and NICs that support QSFP28 DAC.

Features

- 100G low-latency copper interconnect
- Cost-effective short-reach alternative to optical modules
- Plug-and-play QSFP28 MSA compliance
- No additional optics or power needed (passive)
- Secure latching QSFP28 connectors
- Reliable in-rack and top-of-rack cabling

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 an active or passive cable?
A: Passive DAC. Ensure both endpoints support passive QSFP28 DAC.

Q: Do I need separate transceivers?
A: No. The QSFP28 connectors and copper cable are integrated.

Q: Is this a breakout cable?
A: No. It is a straight QSFP28-to-QSFP28 100G cable (not 4x25G breakout).

Q: What is the supported reach?
A: Up to 1 meter for 100GBASE-CR4 when used with compatible QSFP28 DAC ports.

Q: What devices is it compatible with?
A: Any standards-based QSFP28 100G port that supports DAC per MSA; check device DAC support policies.

Technical Specifications

- Data rate: 100 Gigabit Ethernet (4x25G NRZ)
- Base standard: IEEE 802.3bj 100GBASE-CR4
- Form factor: QSFP28 to QSFP28
- Cable type: Direct Attach Copper (Twinax), passive
- Length: 1 meter
- Connector: QSFP28 male to QSFP28 male
- Compliance: QSFP28 MSA, SFF-8665, RoHS
- Use case: Short-reach in-rack or adjacent-rack 100G links

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