Ruckus E100G-QSFP-QSFP-P-0301 100GBase Passive Twinax Direct-Attach Cable (DAC)
Overview
The Ruckus E100G-QSFP-QSFP-P-0301 is a passive twinax copper cable assembly designed for short-reach, high-density 100 GbE links in data-centre racks and aggregation fabrics. With QSFP28 (100G) connectors at both ends, it plugs directly into compatible switch or router QSFP28 ports—eliminating the need for separate transceivers, thus reducing cost, power-draw and heat in rack row installations. According to supplier info, this cable supports 100 GBASE-CR4 operation (≈103.125 Gb/s) over 3 metres of twinax cable. In practice, if you’re linking adjacent racks, top-of-rack switches in the same row, or creating high-bandwidth interconnects between leaf/spine switches, this cable gives you a cost-efficient and low-latency path without fiber optics. Because it’s passive, there’s no active electronics, so reliability is high and failure risk low—ideal for dense rack rows where simplicity and performance matter. Use case: connecting two QSFP28 ports on leaf switches at 100G to feed server racks or uplink to spine.
Key Features
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Full-rate 100 Gb/s (100GBASE-CR4) twinax cable supports high-density switch interconnect.
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QSFP28 to QSFP28 connectors—plug straight into matching ports.
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3 metre fixed length optimised for intra-rack or adjacent-rack cabling.
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Passive copper (twinax) construction: lower cost, lower power and simpler than active optical solutions.
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MSA compliant QSFP28 form-factor; vendors list compatibility with Ruckus/Brocade equipment.
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