Arista FAN-7011H-R 7280R3 Series Back-to-Front Airflow Switch Fan Module

The FAN-7011H-R is a high-speed spare fan module for Arista 7280R3 1RU switches. The 7280R3 is a deep-buffer routing platform, and the high-speed fan gives it extra cooling capacity, useful with high-power optics or in warmer rooms.

This version moves air back-to-front (port-side exhaust). Arista also sells the opposite airflow version, the FAN-7011H-F. Every fan module and power supply in the switch must move air the same way, so pair it with reverse-airflow power supplies, such as blue-handle units, and match the rack's hot and cold aisles.

Back-to-front airflow suits switches installed with their ports facing the hot aisle, which is common when the switch is cabled from the rear of the servers in the same rack.

Replace a failed module promptly to restore full cooling headroom. Check the part number on the installed fans first, since the 7280R3 also uses the enhanced-speed FAN-7011M modules, and keep the fan speed consistent across the switch.

Because the module is hot-swappable, you can replace a failed fan without powering the switch down. Swap one module at a time so the remaining fans keep cooling the system.

Keep the replacement close by so the slot is not left empty for long, since an open fan slot changes the airflow through the chassis.

If you need a back-to-front 1RU switch for this fan, the DCS-7280SR3-48YC8-R 48-port 25G switch is a 7280R3 model that runs port-side exhaust cooling.

This seller refurbished FAN-7011H-R is tested, working, and covered by the NetworkTigers one-year warranty.