SFP28 DAC Cable BlueOptics SFP28-DAC-0.5M-SS-BL 0.5m SFP28 Female

The BlueOptics SFP28-DAC-0.5M-SS-BL is a 0.5m direct attach copper (DAC) cable with SFP28 connectors on both ends, designed for 25Gbps high-speed data transmission. Its short, fixed-length design provides a low-latency, low-power connection option for network equipment with SFP28 ports. The cable is intended for point-to-point links inside racks and between adjacent racks where a reliable, cost-effective 25Gbps connection is required.

Advantages

This SFP28 DAC cable delivers a predictable electrical connection with minimal signal loss over the short 0.5m span, supporting 25Gbps data rates with low latency and reduced power consumption compared with active optical solutions. The twin SFP28 female connectors ensure direct compatibility with SFP28 modules and ports, simplifying installation and lowering hardware complexity. Its compact form factor helps maintain neat cabling in dense rack environments and reduces overall system cost for short-reach links.

Suitable for

• Connecting switches and top-of-rack devices inside the same rack
• Linking adjacent racks in data centre row deployments
• Direct connections between servers and storage controllers with SFP28 ports
• Short-reach 25Gbps network uplinks and cross-connects

Key specifications

• Cable type: Direct attach copper (DAC)
• Connector type: SFP28 on both ends (female compatible with SFP28 ports)
• Length: 0.5 m
• Supported data rate: up to 25 Gbit/s
• Typical use: short-reach, rack-to-rack or in-rack connections

How to use

Insert each SFP28 connector into the corresponding SFP28 port on your networking devices until the latch clicks into place, ensuring proper orientation and secure mechanical engagement. Verify link status on connected devices and configure interfaces as required by your network environment. For safe removal, follow the device vendor’s ejection procedure to avoid port damage and power down equipment only if recommended by the hardware manufacturer.

Usage recommendations

Use this 0.5m SFP28 DAC for short-distance, high-bandwidth connections inside racks or between adjacent racks. Avoid routing the cable near high-heat sources and maintain bend radii recommended by your equipment vendor. For longer runs or environments requiring electrical isolation, consider active optical transceivers and fiber cabling.