100G QSFP28 Passive DAC Cable — Cost-Effective 100 Gigabit Connectivity
Save up to 80% versus OEM pricing on this 100GBASE-CR4 QSFP28 to QSFP28 passive direct attach copper twinax cable. Ideal for short-range 100G interconnects in data centers, AI clusters, and high-performance computing environments. Backed by Reef Telecom's industry-leading 10-year warranty.
Technical Specifications
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Type: 100GBASE-CR4 QSFP28 to QSFP28 Passive DAC
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Data Rate: 100Gb/s (4x 25Gb/s channels)
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Length: 1 meter (3.3 ft)
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Cable: 30AWG Passive Twinax Copper
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Connector: QSFP28 on both ends
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Power: Zero power consumption (passive design)
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Standards: IEEE 802.3bj, SFF-8665, QSFP28 MSA compliant
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Temperature: 0°C to 70°C commercial operating range
Key Benefits
- No transceivers required — plug-and-play copper connectivity
- Zero power draw reduces cooling costs and rack power budget
- Passive design with no active components means exceptional reliability
- Low insertion loss and ultra-low crosstalk for clean signal integrity
- Hot-pluggable for easy installation and maintenance
Compatibility
Multi-vendor compatible with Cisco (QSFP-100G-CU1M), Arista, Juniper (JNP-100G-DAC-1M), NVIDIA/Mellanox, Aruba (HPE JL271A), Dell, and other switches with QSFP28 ports. Also compatible with QSFP56 ports via backward compatibility. Perfect for top-of-rack to server connections in AI/ML training clusters, HPC environments, and enterprise data centers.
Free shipping on orders over $300. Also available in 2m, 3m, and 5m lengths. Volume discounts available for full rack deployments — contact us for a quote.