--- title: "Removing and Replacing a Power Supply Unit" slug: "removing-and-replacing-a-power-supply-unit" tags: ["Endpoint Security (HX)", "Hardware"] updated: 2026-10-19T18:36:54Z published: 2026-10-19T18:36:54Z canonical: "docs.trellix.com/removing-and-replacing-a-power-supply-unit" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.trellix.com/llms.txt > Use this file to discover all available pages before exploring further. # Removing and Replacing a Power Supply Unit Follow these steps to remove and replace a power supply unit (PSU): 1. At the rear of the appliance, remove the power cable from the failed PSU. 2. Press the release lever toward the handle in a pinching gesture to unlatch the unit and, while continuing to squeeze, pull out the PSU. 3. Insert the replacement PSU in the slot and slide it in until it clicks into place. :