Arista PWR-750AC-R 7050SX 750W AC B-F Airflow (Blue) Switch Power Supply

The PWR-750AC-R is a spare 750W AC power supply for the Arista 7050SX-128 and the 7050TX-128 family of 2RU switches. These high-density 10G switches need more power than the 1RU 7050X models, and this supply is sized for them.

Input is 100 to 240V AC, so the supply works from standard 120V outlets as well as high-line circuits. Arista rates efficiency at 94% typical, Platinum level.

This version moves air back-to-front (port-side exhaust). Arista also sells the opposite airflow version, the PWR-750AC-F. Match it to every fan module in the switch and to the rack's hot and cold aisles, because a supply moving air the wrong way works against the system fans.

With two supplies installed, one can be replaced while the other carries the load. Do not confuse it with the PWR-745AC supplies, which fit 7060X and 7280QR switches. Check the part number and airflow on the installed supply before ordering a spare.

Arista also sells the PWR-750AC-F power supply with the opposite airflow. A new PWR-750AC-R is also available.

Because the unit is hot-swappable, you can replace a failed supply in a redundant pair without powering the switch down. Install it while the other supply carries the load, then confirm both supplies show as healthy.

This seller refurbished PWR-750AC-R is tested, working, and covered by the NetworkTigers one-year warranty.