Cisco GLC-ZX-SMD 10-2621-01 1000BASE-ZX 1550nm 80Km SMF Transceiver Module

The Cisco GLC-ZX-SMD is a high-performance 1000BASE-ZX Small Form-factor Pluggable (SFP) transceiver module designed for long-distance Gigabit Ethernet connectivity over single-mode fiber (SMF). It supports digital optical monitoring (DOM/DDM) and reaches up to 70–80 km, making it ideal for campus, metro, and enterprise networks.