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Arista

Arista CAB-Q-Q-100G-5M-Arista | 100G QSFP28 Passive DAC Cable, 5m Twinax, 26AWG

CAB-Q-Q-100G-5M-Arista

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Description

The Arista CAB-Q-Q-100G-5M is a 100G QSFP28 passive direct attach copper (DAC) twinax cable designed for cost-effective, short-reach connectivity between QSFP28 ports within racks and across adjacent racks. This 5-meter cable provides reliable 100 Gigabit Ethernet connectivity with low power consumption and low latency, ideal for data centre and enterprise network interconnects. It complies with QSFP28 MSA, IEEE 802.3bj, and 100GBASE-CR4 standards, ensuring compatibility with Arista switches and routers.

Features

100GBASE-CR4 QSFP28 to QSFP28 passive twinax copper cable
- Cost-effective solution for short-reach 100G interconnects within data centres
- Low power consumption with passive design (no active components or signal amplification)
- Low insertion loss and ultra-low crosstalk for reliable signal integrity
- Hot-pluggable QSFP28 connectors for easy installation and maintenance
- Compliant with QSFP28 MSA (SFF-8665), IEEE 802.3bj, and 100GBASE-CR4 standards
- Suitable for connecting switches, routers, and servers in high-density rack environments
- 5-meter length ideal for intra-rack and adjacent rack connectivity
- 26-30 AWG copper twinax cable with controlled impedance (95-105 Ohm)
- Operates in commercial temperature range (0°C to 70°C)
- CE and RoHS certified for environmental and safety compliance
- Pre-programmed EEPROM for seamless compatibility with Arista equipment

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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specs-tabs

Technical Specifications

FAQs

Technical Specifications

Cable Type: 100G QSFP28 to QSFP28 Passive Direct Attach Copper (DAC)
- Cable Length: 5 meters (16.4 ft)
- Data Rate: 100 Gbps (100GBASE-CR4)
- Connector Type: QSFP28 on both ends
- Wire Gauge: 26-30 AWG
- Cable Impedance: 95-105 Ohm
- Bit Error Rate (BER): <10^-12
- Power Consumption: Low power, passive design (no signal amplification)
- Operating Temperature: 0°C to 70°C (commercial temperature range)
- Storage Temperature: -40°C to 85°C
- Input Voltage: 3.0V to 3.6V (3.3V typical)
- Standards Compliance: IEEE 802.3bj, IEEE 802.3ba, QSFP28 MSA (SFF-8665), 100GBASE-CR4, SFF-8662
- Hot-Pluggable: Yes
- Certifications: CE, RoHS compliant

FAQs

Q: What is the maximum transmission distance for this cable?
A: The CAB-Q-Q-100G-5M is a 5-meter passive copper cable designed for short-reach interconnects within racks and across adjacent racks. It is not suitable for long-distance transmission; for distances beyond 5 meters, consider active copper cables or optical transceivers.

Q: Is this cable compatible with Arista switches and routers?
A: Yes, this cable is specifically designed and encoded to be compatible with Arista networking equipment, including modular spline switches, data centre switches, and campus PoE switches. It has been tested for compatibility with a wide range of Arista platforms.

Q: What is the difference between passive and active DAC cables?
A: Passive DAC cables like the CAB-Q-Q-100G-5M have no signal amplification, making them more cost-effective and power-efficient for shorter distances (typically up to 5 meters). Active DAC cables include signal amplification for longer distances but consume more power.

Q: Can this cable be used for 100G Ethernet applications?
A: Yes, the CAB-Q-Q-100G-5M supports 100G Ethernet (100GBASE-CR4) at 103.125 Gbps, as well as OTU4 at 112 Gbps. It is compliant with IEEE 802.3bj and 802.3ba standards for 100 Gigabit Ethernet.

Q: Does this cable support hot-plugging?
A: Yes, the CAB-Q-Q-100G-5M is hot-pluggable, allowing you to connect or disconnect the cable without powering down the equipment, which enhances uptime and simplifies serviceability.

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