- Patented Aluminum Front Panel with Locks,Taiwan: 200281 / 190240 , China: 2L01259648.5. - Front Access USB2.0 x2. - 60mm x1, 80mm x3 Cooling Fan. - Removable Air Filter. - Power and HDD LED. - Power and Alarm Reset Switch. Introduce iStarUSA 3U industrial rackmount chassis D Storm D-300L. The full size back plane and width supports dual Intel and AMD CPU motherboard. It has excellent thermal solution with extra cooling fans. Optional 3.5 and 5.25 tray enable hot-swappable storage, RAID configuration, and total storage capacity up to 6 storage drives provide your server or cluster maximum flexibility and performance.