Omnitron Systems OmniConverter Unmanaged Gigabit, MM SC, RJ-45, Ethernet Fiber Switch – 4 x 10/100/1000BASE-T, 1 x 1000BASE-X, DC Power, 5 Year Warranty 2862-0-14-9Z

AddOn QSFP28 Module – For Data Networking, Optical Network – 1 x LC 50GBase-BX Network – Optical Fiber – Single-mode – 50 Gigabit Ethernet – 50GBase-BX – Hot-pluggable – TAA Compliant Q28-50GP4-BXD3327-10-AO