Arista CAB-Q-Q-100G-1M-Arista | 100G QSFP28 Passive DAC Cable, 1m

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

Stock Status: Enquire

Request Quote

Sale Sold out

Shipping calculated at checkout.

20-min response

Need a quote or bulk pricing? Answered within 20 minutes, Sydney business hours.

Description

The Arista CAB-Q-Q-100G-1M is a 1-meter 100G QSFP28 passive direct attach copper cable designed for high-speed data center interconnects. This twinax cable provides cost-effective, low-latency connectivity between switches, servers, and storage systems with QSFP28 ports at speeds up to 100 Gbps. Ideal for short-reach applications within racks or adjacent equipment, it offers a reliable alternative to optical transceivers.

Features

Passive copper twinax construction for reliable, low-latency data transmission
- Compliant with QSFP28 MSA, SFF-8665, SFF-8679, and IEEE 802.3bj standards
- Four independent 25 Gbps lanes supporting aggregate 100 Gbps bandwidth
- Hot-pluggable design for easy installation and replacement without system downtime
- Low power consumption (max 1.5W per end) reduces operational costs and cooling requirements
- Cost-effective alternative to optical transceivers for short-reach connections
- No external power supply or cooling required
- Compatible with Arista 100G switches and data center platforms
- RoHS compliant for environmental responsibility
- Suitable for high-performance computing, data center interconnect, and enterprise networking applications

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.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

Cable Type: 100GBASE-CR4 QSFP28 Passive Direct Attach Copper (DAC)
- Form Factor: QSFP28 to QSFP28
- Cable Length: 1 meter (3.3 feet)
- Data Rate: Up to 103.125 Gbps aggregate bandwidth
- Channels: 4 independent full-duplex channels at up to 25.8 Gbps per lane
- Power Consumption: Maximum 1.5W per connector end
- Supply Voltage: 3.3V
- Compliance: SFF-8665, SFF-8679, IEEE 802.3bj, QSFP28 MSA
- Cable Assembly: Passive copper twinax
- Operating Temperature: 0°C to 70°C
- Certifications: RoHS compliant

FAQs

Q: What is the difference between passive and active DAC cables?
A: Passive DAC cables like the CAB-Q-Q-100G-1M use copper twinax without signal amplification, making them ideal for distances up to 3 meters. They consume less power (typically under 1.5W per end) and are more cost-effective than active cables or optical transceivers for short-reach connections.

Q: Is this cable compatible with non-Arista equipment?
A: While designed and coded for Arista switches, QSFP28 DAC cables often work with other vendors' equipment that supports 100G QSFP28 ports and follows MSA standards. However, compatibility should be verified with the specific equipment manufacturer, as some devices may require vendor-specific coding.

Q: Can this cable be used for 40G connections?
A: No, the CAB-Q-Q-100G-1M is specifically designed for 100G operation using four 25 Gbps lanes. For 40G connectivity, you would need a QSFP+ 40G DAC cable which operates at four 10 Gbps lanes instead.

Q: What are the main applications for this cable?
A: This cable is ideal for high-density data center top-of-rack to spine switch connections, server-to-switch interconnects, and storage network applications where equipment is located in the same rack or adjacent racks within 1 meter distance.

Q: Does this cable require any special licensing or configuration?
A: No, the CAB-Q-Q-100G-1M is a passive cable assembly that requires no licensing, software configuration, or power management. Once plugged in, it is automatically recognized by compatible Arista switches and begins operating at negotiated speeds.