Norcotek product page:RPC-3216
* 3U rackmount design
* Sixteen hot-swappable SATA (I or II) / SAS drive bays
* Four internal SFF-8087 Mini SAS connectors support up to sixteen 3.5" or 2.5" hot swappable SATA (I or II) or SAS hard disk drives;
* Hot-swappable HDD tray with special designed power-off and lock mechanism.
* 1 x slim CD-ROM bay, 2 x 2.5" OS drive brackets, 16 x 3.5" hot-swappable drive bays, 1 x 3.5" OS drive bracket.
* Six ball-bearing cooling fans for better ventilation
* Support EEB (12"x13"), CEB(12"x10.5"), ATX (12"x9.6"), Micro ATX (9.6" x 9.6") motherboard (If working with standard power supply, four expansion slots are available; if working with redundant power supply and optional back window, seven expansion slots are available)
* Screwless top cover
* RoHS Compliant
* Redundant 4pin molex PSU connectors support redundant power supply
* Smooth border prevent lacerating your skin