DAC cable CBO QSFP28 SC282801L5M26 5 m

Direct Attach Copper (DAC) cable CBO QSFP28 SC282801L5M26 5 m is a passive copper interconnect designed for short-reach, high-speed links between QSFP28 ports. The 5-metre cable supports 100 Gigabit Ethernet connections and is intended for use in data centres and enterprise networking where low latency and reliable, plug-and-play connectivity are required. The compact QSFP28 connector assembly provides a simple, factory-terminated solution for connecting switches, routers and servers that offer QSFP28 interfaces without additional transceivers.

Advantages

The CBO QSFP28 5 m DAC cable delivers low electrical latency and consistent signal integrity across short distances, reducing power consumption compared with optical transceivers. As a passive copper direct attach solution it offers immediate compatibility with QSFP28 ports, a fixed low-latency link profile and a compact form factor that minimizes rack cabling complexity. Installation is tool-free and requires no configuration, providing plug-and-play operation suitable for dense rack deployments and top-of-rack connectivity.

Suitable for

• Short-reach 100GbE links between switches in the same rack or adjacent racks
• Direct server-to-switch connections in data centre topologies
• High-throughput uplinks and aggregation links within enterprise LANs
• Environments prioritising low latency and minimal power overhead

Key specifications

• Cable type: Passive Direct Attach Copper (DAC)
• Connector type: QSFP28 duplex copper assembly
• Rated speed: 100 Gigabit Ethernet (100GbE)
• Length: 5 metres
• Typical use range: short-reach, within and between adjacent racks
• Interface compatibility: QSFP28 ports on switches, routers, network adapters

How to use

Insert each QSFP28 connector into the corresponding port until the latch engages. No additional configuration or optical transceivers are required; the cable is recognized by standard QSFP28 ports and operating systems that support the interface. Route the cable to avoid sharp bends or compression; maintain the recommended minimum bend radius to preserve signal integrity. For hot-plug operations, ensure attached equipment supports hot-swapping and follow host vendor guidance for safe insertion and removal.

Recommendations

Use the DAC cable for short, direct connections where distance does not exceed 5 metres. Avoid prolonged exposure to mechanical stress, excessive heat or liquids. For longer distances or where fibre connectivity is preferred, consider optic-based transceiver solutions. Verify compatibility with the specific switch or server vendor if the network equipment enforces vendor-locked port policies.