100GBASE-CR4 QSFP28 Passive DAC 50CM Arista Compatible
The ENET 100GBASE-CR4 QSFP28 passive DAC cable delivers 100 Gigabit Ethernet connectivity for enterprise data centers, cloud infrastructure, and high-performance computing environments. This 50cm direct attach copper cable provides cost-effective, low-latency connections between Arista switches, servers, and network appliances without the expense of active transceivers or optical modules. Perfect for organizations requiring reliable 100G interconnects within short-reach deployments, this passive DAC cable reduces power consumption and operational complexity while maintaining full compatibility with Arista networking equipment.
Key Features
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100 Gigabit Ethernet Performance — Full 100GBASE-CR4 specification for maximum throughput
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50cm Cable Length — Ideal for rack-to-rack and switch-to-server connections
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Passive Direct Attach Copper — No active components, lower cost and power consumption
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QSFP28 Connectors — Industry-standard quad small form-factor pluggable interface
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Arista Compatible — Fully certified for Arista switch platforms and infrastructure
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Low Latency Design — Minimal signal degradation for time-sensitive applications
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Enterprise-Grade Quality — Rigorous testing and reliability standards
Technical Specifications
| Specification |
Details |
| Manufacturer |
ENET SOLUTIONS |
| Part Number |
CAB-Q-Q-100G-50CM-ENC |
| Cable Type |
100GBASE-CR4 Passive Direct Attach Copper (DAC) |
| Data Rate |
100 Gigabit Ethernet |
| Connector Type |
QSFP28 (Quad Small Form-Factor Pluggable) |
| Cable Length |
50 centimeters (0.5 meters) |
| Compatibility |
Arista Switches and Compatible Platforms |
| Power Consumption |
Passive (No Power Required) |
| Operating Temperature |
0°C to 70°C |
| Storage Temperature |
-40°C to 85°C |
Frequently Asked Questions
What is a passive DAC cable and how does it differ from active alternatives?
A passive DAC (Direct Attach Copper) cable uses only copper conductors without active electronics, making it more cost-effective and power-efficient than active DAC cables. Passive DACs are ideal for short distances (typically under 7 meters) like this 50cm model, while active cables support longer reaches. For Arista deployments within rack environments, passive DACs deliver superior value without performance compromise.
Is this 100GBASE-CR4 QSFP28 cable compatible with all Arista switches?
This cable is designed for Arista platforms supporting 100GBASE-CR4 QSFP28 interfaces. Compatibility depends on your specific Arista switch model and port configuration. We recommend verifying your equipment specifications before purchase. ENET Solutions ensures full compliance with Arista standards for seamless integration.
What are the typical use cases for a 50cm passive DAC cable?
The 50cm length is perfect for short-reach connections including switch-to-server links, top-of-rack (ToR) to aggregation switch connections, and equipment within the same cabinet or adjacent racks. This distance eliminates the need for longer cable runs while maintaining 100 Gigabit performance in dense data center environments.
How does the passive DAC cable reduce total cost of ownership?
By eliminating active transceiver modules and their associated power requirements, passive DAC cables significantly reduce capital and operational expenses. The 100GBASE-CR4 QSFP28 passive design requires no power supply, generates minimal heat, and requires no firmware management—lowering your data center's overall infrastructure costs.
