The Define 7 XL sets a new standard for what you should expect from a full tower case in terms of modularity, flexibility and ease of use. With its dual-layout interior, industrial sound damping and massively versatile layout supporting the largest E-ATX and enterprise boards, multi-GPU setups, outlandish water loops, and almost two dozen storage devices, you’ll be hard pressed to find a limit to what you can do with your build in the Define 7 XL. Key features: Spacious, extensively adaptable dual-layout interior easily accommodates large motherboards up to E-ATX and SSI-EEB. Mount up to 18 HDD/SSDs plus five SSDs in the default Storage Layout (6 HDD/SSD trays + + 2 SSD brackets + 2 multi-brackets included). Convert to Open Layout for more headroom and gargantuan water-cooling with radiators up to 480 mm in front or top and 280 mm in the base. Two 5.25" ODD bays can be converted to an additional front fan mount with filtered louver covering. Silence-optimized construction with industrial sound-damped front, top, and side panels. Top panel effortlessly swaps from sound dampened solid steel to filtered ventilation. New chassis design opens up to fully expose the case interior on three sides for totally unhindered installation and cable routing. Anodized aluminum front panel with reversible dual-handed hinges opens and closes easily with magnetic latching. Outstanding cooling capacity with a total of 9 x 140 mm or 11 x 120 mm fan mounts and three preinstalled Dynamic X2 GP-14 fans. Versatile new multi-brackets convert any unused fan position to an HDD, SSD, pump or reservoir mount.Three vertical GPU slots for use with the Flex VRC PCIe riser, available separately. Five front USB ports including one USB 3.1 Gen 2 Type-C with fast charging support and speeds up to 10Gbps. Ultra-slim Nexus+ 2 fan hub connects up to three PWM fans and six 3-pin fans directly in line with cable channels along the edge of the case. Sturdy new HDD cage design with four-point supports and vibration damped trays. Tool-less, top-latching panels allow quick access while preventing accidental drops. Bridgeless expansion slots ensure obstruction-free connections for easier installation and hookup. Ventilated PSU shroud with two-part removable cover. Easy-to-clean high airflow nylon filters on the front, top, and base with full PSU coverage and convenient front access. 13 pass-through holes with ten rubber grommets and two removable covers make for clean cable routing regardless of motherboard size. Detachable PSU cable shield and integrated cable guides with Velcro straps further simplify cable management behind the board.