Direct Attach Cable Digitus DN-81325 40G QSFP+ to 4XSFP+ 5m

The DN-81325 Breakout DAC cable QSFP+ to 4x SFP+ provides direct-attach connectivity for 40G Ethernet links and supports interoperability with four independent 10G Ethernet channels. Designed for use in datacenter environments, the cable offers up to 5 m transmission length and operates from 0 ℃ to 70 ℃ on a single +3.3 V power supply. It complies with SFF-8436, SFF-8431, SFF-8432 and SFF-8472 standards to ensure compatibility with compatible switches, servers and NAS systems.

Advantages

The DN-81325 Breakout DAC delivers high channel density and reliable signal integrity for short-reach connections in high-performance computing, core switch and storage deployments. It enables 40G to 4x10G Ethernet interoperability while requiring no optical transceivers, simplifying installation and lowering latency and power compared with active modules.

Key specifications

• Data rate per channel: up to 10.3125 Gbps
• Aggregate interface: QSFP+ to 4x SFP+
• Cable length: up to 5 m
• Operating temperature: 0 ℃ to 70 ℃
• Power supply: single +3.3 V
• Standards: SFF-8436, SFF-8431, SFF-8432, SFF-8472
• Application: 40G Ethernet and 40G to 4x10G interoperability

How to use

Connect the QSFP+ end of the DN-81325 to a compatible 40G QSFP+ port and plug the four SFP+ connectors into corresponding 10G SFP+ ports. Ensure equipment is powered with a +3.3 V supply and operated within the specified 0 ℃ to 70 ℃ temperature range. Verify port configurations on switches or servers to enable 40G to 4x10G breakout operation and confirm link status using device diagnostics that support the listed SFF standards.