We make equivalent fiber transceiver to Cisco GLC ZX SM; they are compatible with Cisco products and at very economic prices.
GLC ZX SM
GLC ZX SM is 1000Base-ZX SFP fiber optic transceiver, GLC ZX SM works with single mode optical fiber at 1550nm working wavelength. Cisco GLC ZX SM could reach a max 100 km working distance over single mode fiber. This mini GBIC is carrier-class quality and can be fully trusted for your most demanding LAN/WAN applications, voice projects, or network deployments. GLC ZX SM dimension is 0.5 in x 2.2 in x 0.4 in, it works based on IEEE 802.3z and data transfer rate is 1Gbps. We offer equivalent products to Cisco GLC ZX SM; our products are fast delivery and very good price.