SFP28 Direct Attach Cable CBO for Juniper 740-084664, 1 m, passive copper

SFP28 Direct Attach Cable CBO for Juniper 740-084664, 1 m, passive copper is a 1 metre SFP28 twinax copper assembly designed to provide a low-latency 25 Gbps electrical link between compatible SFP28 ports. The cable supports short-reach connections commonly used in data centers and network racks for server-to-switch, switch-to-switch or storage interconnects. Its passive design requires no external power or active components, and the compact SFP28 form-factor enables plug-and-play installation in standard port cages.

Advantages

The passive copper construction delivers low latency and consistent signal integrity for 25 Gbps links while keeping power consumption minimal. The 1 m length reduces excess cable slack in dense rack environments and simplifies cable management. The SFP28 twinax assembly is backward-compatible with SFP28 port mechanics and offers a cost-effective alternative to optical transceivers for short distances.

Suitable for

• Server-to-top-of-rack switch connections in data centres
• Switch-to-switch short-reach links within racks
• Direct attachment for storage arrays and SAN endpoints
• High-density network panels and blade server enclosures

Key specifications

• Connector type: SFP28 duplex electrical connectors
• Data rate: 25 Gbps per link
• Cable type: Passive twinax copper
• Length: 1 metre
• Latency: low, suitable for short-reach interconnects
• Form factor: SFP28 compatible module assembly

How to use

Install the cable by inserting each SFP28 connector into the corresponding SFP28 port until the latch clicks to secure the connection. Ensure both devices support 25 Gbps electrical direct-attach connections and that ports are powered and configured for the intended link speed. For removal, depress the connector latch and pull straight out to avoid damaging the port. No additional configuration is required at the cable level; adjust device settings only as needed for link negotiation or port mapping.

Recommendations

For optimal performance, use this passive SFP28 twinax cable for short-distance links up to 1 metre inside racks or between adjacent racks. Avoid tight bends and excessive stress on the cable assembly, maintain good airflow around port panels, and ensure compatible SFP28 ports on both devices. For longer distances or optical isolation requirements, consider active cables or fiber optic transceivers.