Pixelator runs on standard PC hardware and the only significant requirements are that your hardware cards physically fit. Since the common interface cards for interferometers, and from National Instruments tend to be PCI based, you need enough PCI slots (not the newer PCIe) to fit your set of cards. Further, the case should be large enough to fit cards inside (PCI cards tend to be bigger than PCIe cards). For a rack-mounted PC, the case should be 4 units high and should typically be a "long" version to ensure the case has enough depth.