Network Cable BlueLAN 100G-Q28-S28-C-0201 QSFP28 to 4x25G SFP28 2M Blue

The BlueLAN 100G-Q28-S28-C-0201 QSFP28 to 4x25G SFP28 2M Blue is a passive direct-attach breakout cable engineered for short-range, high-density network interconnections. Designed for data centers and high-performance computing environments, this 2 meter cable supports 100GBASE-CR4 to four separate 25GBASE-CR links using QSFP28 and SFP28 connectors. The AWG26 conductor specification ensures consistent signal integrity and low insertion loss across the two-meter length, while the blue jacket provides clear visual identification in patching environments.

Advantages

This passive breakout cable delivers a cost-efficient way to connect 100G QSFP28 ports to multiple 25G SFP28 ports without active components or external power. The AWG26 wiring reduces attenuation for reliable short-reach performance, and the direct-attach design eliminates the need for transceivers, lowering capital and operational complexity. Its standardized connector types and compact form factor make rack and switch patching cleaner and help maintain airflow in dense installations.

Suitable for

• High-density data center switch-to-switch connections
• Server uplinks to top-of-rack or spine switches
• Short-reach breakout deployments inside racks and cages
• High-performance computing clusters requiring multiple 25G links

Key specifications

• Connection type: QSFP28 (one end) to 4 × SFP28 (other end)
• Supported protocol: 100GBASE-CR4 to 4 × 25GBASE-CR
• Length: 2 meters
• Conductor gauge: AWG26
• Design: Passive direct-attach breakout cable
• Cable color: Blue

How to use

Insert the QSFP28 end into the 100G QSFP28 port on a switch or other network device and plug the four SFP28 ends into the corresponding 25G ports on target devices. Ensure that host devices support passive direct-attach cables and are configured for breakout operation if required. Handle the cable by the connector bodies when plugging and unplugging to avoid stress on the cable assembly and maintain proper bend radius to prevent damage to the internal conductors.

Usage recommendations

Use this breakout cable for short-reach, high-density connections inside racks or between adjacent racks; avoid outdoor use or runs exceeding the specified 2 m length. Verify device compatibility with passive QSFP28-to-SFP28 breakout assemblies and follow manufacturer guidance for port configuration and optical/electrical settings.