Lenovo 4TC7A90539 10G/25G SFP28 Transceiver | SFP28, Enterprise

Support mixed-speed Ethernet environments with this Lenovo 10G/25G SFP28 transceiver. Designed for enterprise switching and server connectivity, it provides a compact hot-pluggable form factor for links that need either 10 GbE or 25 GbE operation, depending on the platform and deployment profile. That flexibility makes it useful in networks where migration paths, standardized optics, and controlled inventory are part of the design. For teams refreshing access layers, expanding leaf-spine fabrics, or connecting high-performance servers, a dual-rate SFP28 module helps reduce the number of part types that must be stocked and qualified. It also fits the practical reality of staged upgrades: some ports remain at 10 GbE while others move to 25 GbE, without forcing a wholesale redesign of the optics layer. This transceiver is a strong fit when you need compact, high-density connectivity with the discipline expected in enterprise infrastructure. It is the kind of component that earns its place in environments where uptime, compatibility, and predictable deployment matter more than marketing claims. When the network needs a clean path between current capacity and future bandwidth, this module provides it.