Cisco 100G optical transceiver modules provide QSFP-based 100 Gigabit Ethernet connectivity for data center, enterprise core, aggregation, service provider, and high-performance networks. Buyers compare QSFP-100G SR4, DR, LR4, ER4, ZR, CWDM4, BiDi, and breakout options by reach, connector, fiber type, platform compatibility, power, temperature range, cabling design, and Cisco support requirements.
Showing all 7 results
100G QSFP AOC – 3m Length – Active Optical Cable
100G QSFP DAC – 3m Length – Passive Copper Cable
100G QSFP DAC – 5m Length – Passive Copper Cable
100G DR QSFP – LC SMF – 500m Reach
100G CWDM4 Lite QSFP – LC SMF – 2km Reach
100G SR4 QSFP – MPO-12 MMF – 100m OM4
100G ZR4 QSFP28 – LC SMF – 80km Reach
Cisco 100G optical modules are used to connect switches, routers, firewalls, and transport systems at 100 Gigabit Ethernet speeds. Common use cases include data center spine-leaf links, campus core uplinks, aggregation, service provider connections, and high-performance computing networks.
Most current Cisco 100G Ethernet optics use QSFP or QSFP28 form factors, depending on platform and module type. Buyers should match the module to the exact Cisco port, because a 100G port may not support every QSFP-100G optic.
QSFP-100G-SR4 is for short multimode fiber links and typically uses an MPO connector. QSFP-100G-LR4 is for longer single-mode fiber links and typically uses duplex LC. The correct choice depends on fiber type, distance, connector plant, and platform support.
Choose DR for shorter single-mode data center links, ER4 for longer single-mode reach, and ZR for extended reach where supported by the platform and power budget. Always verify distance, fiber quality, link budget, host compatibility, and operating temperature.
Some 100G ports and optics support 4x25G breakout, but support depends on the Cisco platform, port mode, transceiver, cable or breakout harness, and software release. Confirm breakout support before ordering optics or building a cabling plan.
Compatibility is platform-specific. A Cisco 100G optic may be supported on certain Nexus, Catalyst 9500, Catalyst 9600, router, or firewall interfaces but not others. Check the Cisco transceiver compatibility matrix for the exact hardware and software release.
Third-party optics may work in some environments, but Cisco support and diagnostics can differ from Cisco-coded modules. For production networks, validate support policy, warranty impact, DOM visibility, error behavior, and whether the platform enforces transceiver checks.
Fiber type depends on the optic. SR4 and some short-reach modules use multimode fiber, often with MPO cabling, while LR4, DR, ER4, and ZR use single-mode fiber with distance-specific link budgets. Connector and polarity planning are critical.
Power consumption affects port thermal limits, platform support, airflow, and high-density line-card planning. Longer-reach optics and coherent-style modules can draw more power than short-reach modules, so verify host support and environmental limits before ordering.
Verify Cisco platform compatibility, exact optic PID, reach, fiber type, connector, breakout need, software release, temperature range, power draw, DOM support, link budget, cabling polarity, lifecycle status, and whether Cisco original optics are required for support.
Cisco 100G Optical Modules are typically selected when a network is moving beyond 10G or 40G and needs a practical 100G link for switch uplinks, spine-leaf fabrics, router handoffs, or longer-distance fiber transport. This category is built for buyers who already know the target speed and now need to choose the right Cisco optic based on port form factor, reach, media type, and platform compatibility. It is a useful starting point for comparing Cisco 100G transceivers for active projects, expansion plans, and spare inventory requirements.
Notifications