Moving up the line, the Z620 delivers a two-socket system in a rackable minitower with a maximum of 24 cores across two Xeon E5-2697v2 12-core processors. Its 12 DIMM slots can handle as much as 192 GB of 1,866-MHz 8-channel ECC DDR3 memory across four channels per CPU. Its 6-channel SATA controller can handle a total of 12 TB of storage and can manage RAID 0, 1, 5 or 10 arrays. Integrated LSI 9212-4i (4-port SAS) or 9717-4i4e (8-port SAS) controllers are optional. In addition to dual-gigabit Ethernet ports, four USB 3.0 ports (two front, two rear) and a FireWire port, HP offers an optional Thunderbolt 2 port implemented as a PCIe card. For graphics, high-end options include Nvidia Quadro K4000, K5000, 6000, Tesla C2075 and K20c, or the AMD FirePro W7000.