Features Heavy duty chassis construction Safety system: mechanical key lock in front panel and side panel for double security and high protection for hardware 5.25" drive bay can be transformed to mobile rack & hot swap enclosure of SCA2 HDD Non screw assembly design: slide guide FDD/HDD, CD-ROM drive bay Highly flexible PSU unit supports standard PS2 for PC case and redundant PSU for server case Various cooling fan supports in front, rear and top of chassis for highly efficient ventilation Front access dual USB, audio in topside Fully EMI construction pass electronic emission