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 5.25 Odd 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 pass-through holes with ten rubber grommets and two removable covers make for clean cable routing regardless of motherboard sizeairflow and cooling- 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- easy-to-clean high airflow nylon filters with full psu coverage and convenient front access- the two 5.25 Odd bays can be converted to an additional front fan mount with filtered louver coveringexceptionally silentsilence-opt...