The Intel Xeon processors, large memory capacity, and loads of storage, combined with multiple chassis types, RAID choices, and I/O options, make it easy to create the perfect RD650 configuration to run your business-critical applications. In addition to the standard 3.5- and 2.5-inch chassis, the RD650 offers a unique hybrid option with nine 3.5-inch and six 2.5- inch drive bays in the front and two 2.5-inch drive bays in the back--great for creating a tiered storage environment.