* Your system must have SAS controller if you want to use SAS HDD.
* Hard drive capacity and RAID support is dependent on SAS or SATA controller used.
** FS305 is designed for maximum space utilization. In order for it to fit five 3.5” drive bays into the space of three 5.25” bays, its sides are flat with no cutouts for fitting between 5.25” bays with protruding lip or brackets. Therefore, please make sure your case has 5.25” bays that are also flat on the inside with no protrusions. If not, please consider using FS303 or FS304 instead.