CBO Cable BlueOptics 00YL850-BL 3m SFF-8644 Male to Male

The CBO Cable BlueOptics 00YL850-BL 3m SFF-8644 Male to Male is a 3-metre copper direct-attach cable with SFF-8644 (Mini-SAS HD) male connectors on both ends. It is intended for short-range, high-density server, storage and networking environments that require reliable, fixed-length connections between devices with SFF-8644 interfaces. The cable provides a straightforward physical link for Host Bus Adapters, RAID controllers, SAS expanders and comparable equipment where a compact, low-latency copper connection is preferred over optical transceivers and patching.

Advantages

This SFF-8644 male-to-male cable offers a compact form factor and robust mechanical connectors suitable for dense rack layouts. As a copper direct-attach solution it delivers low latency and consistent signal performance without the need for separate transceivers. The fixed 3 m length simplifies cable management in short interconnect paths and reduces the number of active components, which can lower power and maintenance requirements in data centre or enterprise storage installations.

Suitable for

• Direct connections between servers and storage enclosures with SFF-8644 ports
• Links between Host Bus Adapters (HBAs) and RAID controllers supporting Mini-SAS HD
• Short-range interconnects in top-of-rack or middle-of-row rack configurations
• SAS expander to storage shelf connections inside racks

Key specifications

• Cable type: Copper direct-attach
• Connector type: SFF-8644 (Mini-SAS HD) male to male
• Length: 3 metres
• Use case: Short-range, high-density server and storage interconnects
• Compatibility: Devices and controllers with SFF-8644 interfaces

How to use

Identify two devices with compatible SFF-8644 ports and ensure both are powered down or can accept hot-plug connections per manufacturer guidance. Align each SFF-8644 connector with the device port and insert fully until the connector latch engages. Route the 3 m cable to avoid excessive bending or pinching; maintain recommended bend radius near connectors. After physical installation, power the devices and verify link status through the host or storage controller firmware and operating system tools.

Recommendations

Use the cable for short, fixed-length links inside racks or enclosures and avoid long-distance runs. Keep the cable away from sources of electromagnetic interference and secure it to rack channels or cable management arms to prevent connector strain. Refer to equipment vendor documentation for hot-plug procedures and supported cable types when connecting controllers or expanders.