DAC cable CBO DEM-CB200QXS 30 m QSFP direct attach

CBO DAC cable DEM-CB200QXS 30 m QSFP direct attach is a 30-metre direct-attach copper cable designed for short-range, high-bandwidth connections between devices that support QSFP interfaces. The cable provides a fixed, low-latency connection for switches, routers and servers in rack and data centre environments, removing the need for separate optical transceivers and simplifying cabling for point-to-point links.

Advantages

The cable offers a compact, single-piece solution that reduces component count and installation time compared with separate transceivers and patch cords. Its direct-attach design provides predictable signal performance and low latency for high-speed links, while the sealed QSFP terminations ensure secure mating with compatible QSFP ports. Using this direct attach cable simplifies rack management and reduces power consumption associated with active transceiver modules.

Suitable for

• Short-range 40G/100G (QSFP-based) interconnections in data centres and server racks
• Direct device-to-device links between switches, routers and high-performance servers
• Temporary or permanent point-to-point cabling where a compact, low-latency solution is required

Key specifications

• Connector type: QSFP direct-attach terminated on both ends
• Length: 30 metres
• Media: copper direct-attach cable (passive link)
• Intended use: short-range high-speed interconnects in racks and data halls
• Compatibility: designed for devices with QSFP ports supporting direct-attach cables

How to use

Install the cable by firmly inserting each QSFP end into the corresponding QSFP port on the network devices until the connector latches engage. Verify physical connection by checking link LEDs or device diagnostics. Ensure the cable is routed without sharp bends and secured within the rack to avoid strain on the terminations. Follow your equipment vendor’s guidance for supported cable types and any required port configuration to enable the intended link speed.

Recommendations

Use this direct-attach cable for short, rack-level connections where a passive QSFP link meets the required bandwidth and distance. Avoid using it in environments that require hot-swappable optical transceivers or where cable routing imposes tight bend radii; maintain manufacturer-recommended bend radius and ambient conditions to ensure reliable performance.