Lenovo QSFP28 Module - For Optical Network, Data Networking - 1 x 100GBase-SR4 Network - Optical Fiber100 Gigabit Ethernet - 100GBase-SR4. With 100GBase-SR4 technology, get up to 100Gbps data transfer rate over optical fiber cable100 Gigabit Ethernet - High bandwidth performance, ease of use and reliable connectivityOptical Fiber media support ensures maximum convenience and great usabilityQSFP28 is the single answer to all your desired and specified application execution needsQSFP28 with optical network application/usage for reliability and maximum efficiency