Features Intel® Quad Core XEON Processor, Intel® C600 Chipset, Integrated High Definition Audio, Intel® 82579 Gigabit Ethernet Controller, Quad Channel up to 128GB DDR3 ECC/NonECC 4 DIMM slots, PERC H310 RAID Card, SATA/SAS/SSD Drive, 2 int. 3.5" HD bays, 1 ext. 5.25" bay, 1 ext. slimline optical bay, Two PCIe x16 Gen3, One PCIe x16 Gen 3 wired x4, One PCIe x4 Gen2, One PCIe x1 Gen2, One PCI 32bit/33MHz, 635W or 425W Power Supply, 3Yrs NBD Onsite Service