SFP28 DAC kabel BlueOptics SFP28-DAC-3M-IA-BL 3 m samec/samec

The BlueOptics SFP28-DAC-3M-IA-BL is a 3 meter SFP28 Direct Attach Copper (DAC) cable with SFP28 male connectors on both ends. Designed for short-reach, high-speed links in data center and networking racks, this passive twinax cable supports 25GBase-CR electrical transmission and provides low-latency, low-power connectivity for compatible switches, routers and servers. The cable is MSA-compliant and intended for use where a reliable, cost-effective copper link is required between adjacent rack devices or within the same rack.

Advantages

The cable offers reliable 25 Gbit/s electrical transmission over a fixed 3 m distance with low power consumption and low latency typical of passive twinax DACs. It is built to meet MSA specifications for SFP28 interfaces and to be compatible with major hardware platforms that support 25GBase-CR passive DAC connections. The product's compact form factor and fixed length simplify rack cabling and reduce signal conversion points compared with active or optical links.

Suitable for

• Server-to-switch connections inside a rack
• Switch-to-switch links between adjacent racks or within the same rack
• High-performance networking equipment that supports SFP28 passive DACs
• Short-reach 25G Ethernet, FCoE or InfiniBand electrical links

Key specifications

• Connector type: SFP28 male to SFP28 male
• Length: 3 m
• Supported data rate: up to 25 Gbit/s per link
• Cable type: passive twinax copper, 30 AWG
• Power consumption: passive (negligible, typical for passive DAC)
• Product colour: black
• Weight: approximately 0.08 kg
• Compliance: MSA-compatible SFP28 DAC form factor

How to use

Install the SFP28-DAC-3M-IA-BL by inserting each SFP28 connector into the SFP28 port of the devices to be linked, ensuring the latches engage correctly. Use with networking devices that officially support passive SFP28 twinax DACs and 25GBase-CR electrical interfaces. Route the cable to avoid sharp bends and excessive mechanical stress; maintain proper airflow in the rack. No external power or transceiver modules are required for passive operation.