Cisco QSFP-100G-CU1M 100GBASE-CR4 Passive Direct Attach Copper Cable, 1m

The Cisco QSFP-100G-CU1M is a high-performance 100GBASE-CR4 passive direct attach copper (DAC) cable designed for reliable, low-latency connections in data center and enterprise networks. With a length of 1 meter, it provides a cost-effective solution for short-range 100 Gbps links between QSFP28 ports.

Advantages

This passive DAC cable offers zero power consumption, eliminating the need for external power sources and reducing overall energy costs. Its pre-terminated design ensures easy deployment and high signal integrity, while full compatibility with Cisco QSFP28 interfaces guarantees seamless integration into existing infrastructure.

Suitable for

• Data center interconnect (DCI) within racks or adjacent racks
• High-performance computing (HPC) clusters requiring low latency
• Enterprise network top-of-rack (ToR) to server connections
• Any application requiring 100 Gbps over short distances with passive cabling

Key specifications

• Cable Type: Direct Attach Copper (DAC), Passive
• Data Rate: 100 Gbps
• Technology: 100GBASE-CR4
• Cable Length: 1 meter (3.3 feet)
• Connector Type (End 1): QSFP28
• Connector Type (End 2): QSFP28
• Cable Material: Copper
• Impedance: 100 Ohm
• Wire Gauge: AWG 30
• Power Consumption: 0W (Passive)
• Hot Swappable: Yes
• Compliance Standards: IEEE 802.3bj, SFF-8665
• Operating Temperature: 0 to 70°C
• Storage Temperature: -40 to 85°C
• RoHS Compliant: Yes

Recommendations

For optimal performance, pair this cable with Cisco QSFP28 transceivers or switches. Ensure proper cable management to avoid bending beyond the minimum bend radius. This passive DAC cable is ideal for short-reach, high-bandwidth connections within a single rack or between adjacent racks.