Our QSFP28 Cables are the first to integrate Amphenol Spectra-Strip's EXF SKEWCLEAR wire, offering a flat frequency response beyond 20 GHz. Our QSFP28 connectors add an extended EMI cage and upgraded PCB for superior 100-Gigabit Ethernet (100GBASE-CR4) performance. This high speed data transport capability is ideal as server virtualization becomes more prevalent. With multiple virtual. Amphenol QSFP28 Cables (100G Ethernet QSFP28 DAC Cables) up to 5m (16. 4') In-Stock Today at Cables on Demand. Trusted by 260K+ Enterprise. 3M™ Direct Attach Copper Cable Assemblies 100G QSFP28 to 2xQSFP28, 9Q Series deliver flexible rack design solutions for connecting servers, switches, storage and other high-speed equipment.