APC ACDC2551 Depth Adapter for SX42U to SX48U | Rack, Enclosure

Specify enclosure depth with more control. The APC ACDC2551 Depth Adapter is built for APC NetShelter SX 42U and SX 48U enclosures, giving rack planners a way to adapt enclosure depth for containment-oriented deployments. With a maximum adjustable depth of 75.35 in and height adjustability, it helps align the enclosure to the physical requirements of the room, row, or cooling architecture. This adapter belongs in environments where airflow management and rack consistency matter. APC positions the product within hot and cold air containment systems designed to improve cooling predictability, capacity, and efficiency at the rack, row, or room level. That makes the ACDC2551 a strong choice when enclosure fit is not just a mechanical concern, but part of the thermal strategy. At 41.29 lb, the adapter is substantial hardware intended for serious infrastructure deployments. It is RoHS compliant, environmentally friendly, and backed by a 3-year limited warranty. For teams standardizing on APC NetShelter enclosures, this adapter helps preserve installation accuracy while supporting the thermal discipline expected in higher-density environments.