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 fans 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 coveri