Model Type CPU Memory Max. Interfaces max. PCI Express Software
XM2 ESMexpress Intel Core 2 Duo SP9300 / 2.26 GHz down to ULV Celeron M 722 4 GB DDR3 SDRAM 2 Gb Ethernet, 3 SATA 1.5Gb/s, 8 USB 2.0, 2 SDVO, HD Audio 1 x16 PCI Express Graphics link, 4 x1 PCI Express links Windows, Linux, VxWorks, QNX
XM1L ESMexpress Intel Atom Z510P/Z530P/ Z510PT/ Z520PT up to 1.6 GHz 2 GB DDR2 SDRAM 1 Gb Ethernet, 1 SATA 1.5Gb/s, 8 USB 2.0, SDVO, LVDS, HD Audio 1 x1 link to local Gb Ethernet, 1 x1 link to carrier Windows, Linux, VxWorks, QNX
XM51 ESMexpress PowerPC eight-core P4080, quad-core P4040 or quad-core P3041 / 1.2 to 1.5 GHz Up to 16 GB DDR3 SDRAM (ECC), 128 KB FRAM, 256 MB Flash 2 Gb Ethernet, 2 SATA 3Gb/s, 4 USB 2.0 + 1 USB client 2 x1 links to carrier (PCIe 2.x) VxWorks (Linux on request)
XM50 ESMexpress PowerPC MPC8548 / 1.33 GHz down to MPC8543 / 800 MHz 2 GB DDR2 SDRAM (ECC), 2 MB SRAM, 128 KB FRAM 3 Gb Ethernet, 3 SATA 1.5Gb/s, 6 USB 2.0 + 1 USB client 1 x8 link to carrier Linux, VxWorks, QNX, Integrity