AddOn - SFP28 transceiver module (equivalent to: Cisco SFP-10/25G-LR-S) - 25 Gigabit LAN - 25GBase-LR - LC single-mode - up to 6.2 miles - 1310 nm - TAA Compliant - for P/N: A9903-8HG-PEC=, A9K-4HG-FLEX-FC=, ASR-9902, N9K-C9336C-FX2-E, NCS-55A2-MOD-HX-S