Description
The Cisco N540-PWR400-D is a high-efficiency DC power supply module designed for use with the Cisco Network Convergence System 540 series. Engineered for demanding networking environments, it delivers up to 400W of power, ensuring consistent and reliable performance for critical infrastructure. Its compact form factor allows for easy installation and integration into existing systems, making it an ideal choice for scalable network deployments. The front-panel LED indicators provide clear status updates, aiding in quick diagnostics and maintenance.
Built with durability and efficiency in mind, the N540-PWR400-D supports hot-swappable functionality, minimizing downtime during power module replacement or maintenance. It operates within a wide input voltage range of -40 to -72 VDC, offering flexibility for various power environments. The module features integrated protection mechanisms against overvoltage, overcurrent, and overtemperature conditions. As a used unit, buyers can expect enterprise-grade performance at a reduced cost, with the added value of Cisco’s robust hardware design and long-term reliability.

