The HP 684576-001 housing assembly is a replacement part identified for a card guide and fan. Its listed description includes 1125W, which distinguishes this assembly in the product reference.
The part number is 684576-001. The listing describes it as an SPS housing assembly, so the item combines the housing designation with the card guide and fan assembly reference. It is intended as a specific replacement component; the listing does not provide further details about dimensions, connectors, or compatible workstation models.