Digital Coherent Optics module, hot- pluggable QSFP28 form factor Transmission reach: Up to 80km unamplified (loss limited) Up to 120km amplified (dispersion limited, optionally extendable to 300km) Full C-band tunable, 50GHz or 100GHz grid Case temperature range 0°C to. Digital Coherent Optics module, hot- pluggable QSFP28 form factor Transmission reach: Up to 80km unamplified (loss limited) Up to 120km amplified (dispersion limited, optionally extendable to 300km) Full C-band tunable, 50GHz or 100GHz grid Case temperature range 0°C to. Cisco ® QSFP28 100G ZR extends 100GbE coherent links from QSFP28 ports reaching up to 80km over dark fiber and up to 300km over amplified Dense Wave Division Multiplexing (DWDM) links. By providing four lanes of 25G, QSFP28 enables a streamlined upgrade path from lower-speed networks, making it a popular choice for scaling data center interconnect (DCI) and. The Quad Small Form-Factor Pluggable (QSFP) family represents a critical evolution in high-speed optical transceiver technology for data centers, telecommunications networks, and enterprise infrastructure. These hot-pluggable transceivers provide high-density, high-performance connectivity. The availability of 100ZR coherent tunable DWDM (Dense Wavelength Division Multiplexing) transceivers in a QSFP28 form factor marks a significant milestone in this quest, offering a powerful, pluggable solution for access, edge, and metro networks. With up to 100 Gbps speeds, it is frequently used within data centers, enterprise networks, and telecommunications.
