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. Plenty of room for massive builds- Use the 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- Spacious. extensively adaptable dual-layout interior easily accommodates large motherboards up to E-ATX and SSI-EEB- Two 5.25ODD bays can be converted to an additional front fan mount with filtered louver covering- Ventilated PSU shroud with two-part removable cover- Ultra-slim Nexus+ 2 fan hub connects up to three PWM fans and six 3-pin fansSuperlative storage possibilities- Mount up to 18 HDD/SSDs plus five SSDs in the Storage Layout (6 HDD/SSD trays + 2 SSD brackets + 2 multi-brackets included)- Detachable PSU cable shield and integrated cable guides with Velcro straps further simplify cable management behind the board- Sturdy new HDD cage design with vibration damped trays- 13