Arista PWR-1900AC-R is a 1,900 W AC hot-swappable switch power supply for Arista 7260CX and 7280R Series systems. It accepts 200–240 VAC input, and its blue handle identifies back-to-front airflow.
The supply fits compatible 7280R models including the 7280CR-48, 7280QR-C72, 7280CR2-60, 7280CR2A-60, and 7280CR2K-60. It installs in a chassis power-supply bay and supports redundant power configurations when paired with a compatible supply. Airflow runs from the power-supply side to the port side (back-to-front in NetworkTigers terminology). The item is one PWR-1900AC-R power-supply module.
Arista PWR-1900AC-R: Spare 1900 Watt AC power supply for Arista 7260CX and 7280R Series Switches (rear-to-front airflow).