The Corsair FRAME 4000X RS is a lekker well-thought-out mid-tower if you're building something serious, arriving with four RS120 PWM fans already in the box and a full-length tempered glass side panel to show off your work. The mesh front panel keeps airflow sharp, and with support for dual 360mm radiators across three mounting locations - front, side, and roof - proper liquid cooling setups are well catered for. GPU clearance stretches to 430mm even with front fans installed, the adjustable GPU anti-sag arm protects your PCIe slot, and reverse-connector motherboard support keeps cable clutter sorted behind the scenes.
Builders who like options will appreciate the INFINIRAIL™ fan mounting system, which expands fan capacity to up to 13x 120mm or 7x 140mm fans across five positions. The front I/O is genuinely modern, offering a USB 3.2 Gen 2x2 Type-C port alongside two USB 3.2 Gen 1 Type-A ports and audio in/out, all tied together with an ARGB power button. Whether you're going full custom loop or sticking with the included fans, the FRAME 4000X RS has you sorted.