BlueOptics Q28-4S28-DAC-1M-QL-BL Compatible Qlogic QSFP28 to 4x SFP28 Direct Attach Breakout Cable, 1m, Passive, 100GBASE-CR4/25GBASE-CR, AWG26

The BlueOptics Q28-4S28-DAC-1M-QL-BL is a high-performance, passive Direct Attach Copper (DAC) breakout cable designed for reliable 100 Gigabit Ethernet connectivity. This cable converts a single QSFP28 port into four independent SFP28 ports, enabling seamless integration of 100G switches with 25G servers or storage devices. With a length of 1 meter and AWG26 gauge, it offers a cost-effective, low-latency solution for data center and high-performance computing environments.

Advantages

This breakout cable eliminates the need for separate transceivers and fiber cabling, reducing cost and complexity. Its passive design ensures zero power consumption and ultra-low latency, while the robust copper construction provides excellent signal integrity over short distances. The cable is hot-swappable and fully compatible with Qlogic equipment, ensuring plug-and-play operation.

Suitable for

• Data center top-of-rack (ToR) to server connections
• High-performance computing (HPC) clusters
• Enterprise network upgrades to 100G/25G
• Storage area networks (SAN) requiring high bandwidth

Key specifications

• Cable Type: Direct Attach Copper (DAC), Passive
• Connector A: QSFP28
• Connector B: 4x SFP28
• Aggregate Data Rate: 100 Gbps (4x 25 Gbps per lane)
• Standards: 100GBASE-CR4 (QSFP28 side), 25GBASE-CR (SFP28 side)
• Length: 1 meter (3.28 ft)
• Wire Gauge: AWG26
• Impedance: 100 Ohm
• Compatibility: Qlogic (Compatible)
• Hot Swappable: Yes

Recommendations

For optimal performance, ensure that both the switch and server ports support the respective standards (100GBASE-CR4 and 25GBASE-CR). This cable is ideal for short-reach, high-density applications where space and power efficiency are critical.