Cisco CPAK-100G-PSM4 100G CPAK Transceiver, 500 m SMF

Keep 100 GbE links stable across short-reach single-mode runs with Cisco’s CPAK-100G-PSM4 transceiver. Designed for parallel optics over SMF, it supports up to 500 m, making it a strong fit for data center interconnects where predictable reach matters more than overbuying long-haul capability. The CPAK form factor is built for Cisco platforms that need high-speed connectivity without sacrificing port density. Parallel transmission helps move 100 GbE traffic efficiently across fiber infrastructure already standardized on single-mode cabling. That makes this module a practical choice for teams refreshing uplinks, expanding leaf-spine fabrics, or replacing lower-speed optics in controlled-distance environments. For buyers comparing price points, the value is in fit and certainty: Cisco compatibility, 100 GbE throughput, and a reach profile aligned to common data center layouts. When the design target is clean integration and dependable short-range performance, this module delivers exactly that—no extra features, no wasted budget.