Ubiquiti UACC-DAC-QSFP28-0.5M Direct Attach Cable 100G

Product Description

The UBIQUITI UACC-DAC-QSFP28-0.5M is a 100 Gbps QSFP28 Direct Attach Copper (DAC) cable designed for short-distance, high-speed interconnects in enterprise and data center environments. DAC cables provide a passive, low-latency alternative to optical transceivers for rack-level connections between compatible switches, routers, and servers. The QSFP28 form factor supports 100 Gbps throughput, making this cable suitable for high-density spine-leaf architectures and aggregation switching deployments. Network engineers and IT infrastructure technicians install this cable for top-of-rack and end-of-row switch-to-server links where minimal distance and low power consumption are priorities.

This cable is suited for enterprise network infrastructure where 100 Gbps connectivity is required over very short distances. The passive DAC design eliminates the need for optical components, reducing cost and complexity at the rack level. Typical deployment scenarios include connecting Ubiquiti UniFi or Enterprise switches to servers or other high-speed network equipment within the same rack or adjacent racks. The 0.5-meter length is intended specifically for same-rack or closely spaced installations.

Key Features

• 100 Gbps data rate via QSFP28 interface
• 0.5-meter cable length for same-rack or adjacent-rack installations
• Passive Direct Attach Copper design — no optical components required
• Low-latency interconnect suitable for high-density switching environments
• QSFP28 connectors on both ends for compatibility with standard 100G ports

Compatibility

Designed as an OEM-style direct attach cable for use with network switches, routers, and servers equipped with QSFP28 100G ports. Specific compatible model information was not provided; verify port compatibility with the target equipment before installation.

Installation Notes

This cable is installed by qualified network engineers or IT infrastructure technicians. Power down or administratively shut down the target switch ports before seating or removing QSFP28 connectors to prevent port damage. Ensure the cable bend radius is not exceeded during routing, as excessive bending can degrade signal integrity. Follow applicable structured cabling and data center standards when deploying within rack or inter-rack configurations.