DAC cable CBO QSFP28-DAC-1M 1m Passive Copper 100G QSFP28

The BlueOptics DAC cable CBO QSFP28-DAC-1M is a 1-meter passive copper Direct Attach Cable with QSFP28 connectors engineered for 100G links. It provides a plug-and-play electrical interconnect for short-reach connections between switches, routers and servers without the need for separate optical transceivers. The cable is suitable for rack-to-rack and intra-rack deployments where latency, power consumption and cost are important considerations.

Advantages

The passive copper construction delivers low latency and minimal power consumption compared with active or optical alternatives. With QSFP28 connectivity and support for 100G data rates, the cable offers a straightforward, low-cost solution for high-density network environments. Its fixed 1 m length simplifies cable management in dense racks and reduces the need for additional transceiver inventory.

Suitable for

• Short-reach 100G connections between top-of-rack or leaf switches
• Direct server-to-switch links within the same rack
• Rack-to-rack interconnects in data center pods
• High-density patching in aggregation and spine layers

Key specifications

• Connector type: QSFP28 to QSFP28
• Length: 1 meter (fixed)
• Media: Passive copper twinax
• Data rate: 100 Gbit/s
• Latency: minimal, electrical direct attach
• Power: passive, no external power required
• Form factor: direct attach cable for short-reach links

How to use

Insert each QSFP28 connector into the corresponding QSFP28 port on network devices until the latch engages. Verify link status on the connected devices and ensure firmware or port settings match the 100G configuration required by your network. The cable does not require separate transceivers or additional power. For removal, depress the connector latch and pull straight out to avoid damaging the port.

Recommendations

Use this 1 m passive DAC for connections within a rack or between adjacent racks where 1-meter reach and low latency are sufficient. Avoid tight bends and excessive strain on the cable; maintain manufacturer-recommended bend radius and secure the cable to prevent mechanical stress on QSFP28 ports. Confirm device compatibility with QSFP28 passive DACs and check port settings for 100G operation before deployment.