SFP (mini-GBIC) transceiver module - 4Gb Fibre Channel - CWDM - LC single-mode - up to 24.9 miles - 1470 nm - for MDS 9020, 9120, 9124, 9124 10, 9134, 9140, 9148, 9216, 9222, 9250, 9506, 9509, 9513