What Is the A920-PWR400-A=? Power Capacity, Device Compatibility, and Use Cases Explained

​​A920-PWR400-A= Overview​​

The ​​A920-PWR400-A=​​ is a ​​400-watt redundant power supply​​ engineered for Cisco’s A920 Series collaboration endpoints and related enterprise systems. Designed for high-availability environments, this module ensures ​​uninterrupted power delivery​​ to critical devices like Cisco Room Kits, Desk Pro systems, or telepresence units, minimizing downtime in mission-critical setups.

​​Technical Features and Deployment Scenarios​​

• ​​Power Output​​: Delivers ​​400W of AC power​​ with active-active redundancy for failover protection.
• ​​Compatibility​​: Optimized for Cisco A920 Series devices but may support select Cisco Webex Board and Room Kit models (verify via Cisco’s compatibility matrix).
• ​​Key Applications​​:
  • ​​Conference Rooms​​: Powers displays, codecs, and peripherals in always-on meeting spaces.
  • ​​High-Density Deployments​​: Supports setups with multiple endpoints or power-hungry accessories.

​​Addressing Common User Concerns​​

​​Q: Is the A920-PWR400-A= hot-swappable?​​
A: Yes. Its ​​hot-swappable design​​ allows replacement without shutting down connected devices, critical for 24/7 operations.

​​Q: Can it operate in voltage-unstable regions?​​
A: Built with ​​wide input voltage tolerance​​ (100–240V), it adapts to fluctuating power grids but pairs best with UPS systems for added safety.

​​Where to Purchase Authentic Units​​

Third-party sellers often lack Cisco’s quality assurance, risking ​​electrical failures​​ or voided warranties. For guaranteed authenticity, purchase the A920-PWR400-A= from [“A920-PWR400-A=” link to (https://itmall.sale/product-category/cisco/).

​​Practical Insights from Deployment Experience​​

In large-scale collaboration deployments, ​​power supply failures are a silent killer​​ of productivity. The A920-PWR400-A= isn’t just a backup—it’s a strategic asset. I’ve seen teams overlook firmware updates for these modules, only to face compatibility hiccups later. Always sync your PSU’s firmware with the parent device via Cisco Control Hub to avoid surprises.