CBO DAC Cable BlueLAN 100G-QSFP-4SFP-P-0301 100G QSFP28 to 4×SFP+ passive direct attach cable 0.301 m

CBO DAC Cable BlueLAN 100G-QSFP-4SFP-P-0301 is a passive direct attach copper assembly that converts a single 100G QSFP28 interface into four independent 10G SFP+ links. With a length of 0.301 m, this low-latency, low-power cable is intended for short-reach interconnects inside racks and between adjacent network devices in data centre environments. The cable supports breakout applications where a high-density 100G port is split into multiple 10G endpoints for switches, routers and servers.

Advantages

The passive design eliminates the need for optical transceivers and reduces power consumption while providing cost-effective high-density connectivity. Its compact form factor and short length minimize signal loss and cabling clutter in dense rack installations. The breakout arrangement allows flexible port consolidation and simplified cabling when connecting a 100G switch uplink to several 10G devices.

Suitable for

• Short-reach rack-to-rack or device-to-device connections in data centres
• Breaking out a 100G QSFP28 port into four 10G SFP+ links
• High-density top-of-rack or aggregation switch deployments
• Low-latency paths between switches, routers and servers

Key specifications

• Function: 100G QSFP28 to 4×10G SFP+ passive direct attach copper breakout cable
• Length: 0.301 m (short-reach cable for in-rack connections)
• Connector types: one QSFP28 plug to four SFP+ plugs
• Transmission: passive copper, no active electronics or optical conversion
• Intended use: breakout between a 100G port and multiple 10G ports, suitable for high-density installations
• Performance focus: low latency and low power consumption for short distances

How to use

Install the QSFP28 end into the 100G port on the source device and insert each SFP+ plug into the corresponding 10G ports on destination devices. Ensure ports are powered down or follow hot-plug guidelines from the device manufacturers if live insertion is required. Verify link status and port configuration on both ends, and configure breakout mode on switches or routers if necessary to enable four independent 10G links from a single 100G port.

Recommendations

Use this passive breakout cable for short, intra-rack connections where low latency and reduced power usage are priorities. Avoid extended runs beyond recommended short-reach distances and confirm compatibility with device vendor breakout mode and SFP+ QSFP28 interoperability lists prior to deployment.