Provide a standards-based 100 Gigabit Ethernet optical interface for QSFP28-equipped networking equipment. The ACCORTEC QSFP-100G-FR-AR-ACC implements 100GBASE-FR, carrying 100 GbE traffic over duplex single-mode fiber through a duplex LC connector. Its 2 km reach suits interconnections that exceed the practical distance of direct-attach copper while retaining a compact pluggable module format. 100GBASE-FR uses a single 1310 nm optical wavelength over a two-fiber single-mode link. One fiber carries transmit traffic and the other carries receive traffic, so the connected fiber plant requires a duplex single-mode path with LC termination. This interface is appropriate for switch-to-switch uplinks, routed backbone links, storage-network connections, and data-center rows connected through structured fiber cabling. The QSFP28 form factor places the optical interface in a single host port rather than requiring a separate media converter. Its distinguishing FR interface combines 100 GbE operation, duplex LC connectivity, single-mode fiber support, and a 2 km maximum optical reach. Verify that the host equipment supports a 100GBASE-FR QSFP28 optical interface and that the installed cabling is duplex single-mode fiber before deployment.