QSFP - 4× SFP+ fanout assemblies provide high bandwidth breakout connectivity for switches, servers, and high performance networking hardware. These cables support 100 Gb per second QSFP28 interfaces split into four independent SFP28 links, enabling flexible port utilization and efficient resource allocation. Copper constructions in various wire gauges maintain controlled impedance, low latency, and stable throughput across short reach applications. Assemblies are specified for reliable signal integrity, durable connector performance, and compatibility with modern data center and enterprise infrastructures.