Arista Networks PWR-500AC-F Power Supply Unit

The Arista PWR-500AC-F 500W AC Power Supply Module is a hot-swappable, internally modular power unit engineered for Arista 7050X and 7280 series Ethernet switches, delivering up to 500 watts of reliable AC power from 100–240V at 50/60 Hz and employing front-to-rear airflow to help manage heat in dense rack environments. This configuration is widely used in data centers, enterprise core networks, and cloud infrastructure where uptime is critical, because the module supports redundant power configurations and can be swapped or added without powering down the switch, minimizing maintenance impact and reducing downtime risk. Its form factor is an internal modular switch power supply, designed for hot-swappable installation, ensuring seamless replacement in existing Arista hardware while preserving power delivery consistency across the 7050X and 7280 platforms. Common replacements include Arista PWR-460AC-F 460W AC Power Supply, PWR-500AC-R 500W AC Power Supply (Rear-to-Front Airflow), and PWR-750AC-F 750W AC Power Supply.