IBM System x3850 X5 22I/O expansion optionsThe server offers the following PCI Express 2.0 slots. None are hot-swap.Slot 1: PCI Express 2.0 x16, full length, full heightSlot 2: PCI Express 2.0 x4 (x8 mechanical), full length, full heightSlot 3: PCI Express 2.0 x8, full length, full heightSlot 4: PCI Express 2.0 x8, full length, full heightSlot 5: PCI Express 2.0 x8, half length, full heightSlot 6: PCI Express 2.0 x8, half length, full heightSlot 7: PCI Express 2.0 x8, half length, full height (used by the Emulex 10Gb Ethernet Adapter)The server has an additional PCI Express slot dedicated to the BR10i RAID controller if installed.Note: The use of slots 1 - 4 requires that a second processor be installed.Network adaptersx3850 X5 offers two integrated Gigabit Ethernet ports, based on the Broadcom BCM5709C controller.Most models also have an Emulex 10GbE Integrated Virtual Fabric Adapter II for IBM System x (featureA148) installed as standard in slot 7. See Table 2 for specifics. This adapter is functionally identical to theEmulex 10Gb Virtual Fabric Adapter II for IBM System x, 49Y7950. The difference is that the integratedadapter has a longer edge connector, meaning that the card can only be installed in this server.For technical details about this card, see the IBM Redbooks® Product Guide Emulex 10GbE VirtualFabric Adapter II and III family for IBM System x, TIPS0844, available athttp://www.redbooks.ibm.com/abstracts/tips0844.html.