Feature SpecificationNetwork Adapter one RJ45 connectorSerial one 9-pin connector; 16550 C compatibleParallel one 25-pin connector (optional for mini-tower, desktop and smallform factor)USB 2.0:Mini-Tower, Desktop, Small Form Factor Front Panel: twoBack Panel: fourUltra Small Form Factor Front Panel: noneBack Panel: twoUSB 3.0: Front Panel: twoBack Panel: twoVideo • 15-pin VGA connector• two 20-pin DisplayPort connectorsNOTE: Video connectors may vary based on the graphicscard selected.Table 24. Internal ConnectorsFeature SpecificationPCI 2.3 data width (maximum) – 32 bits:Mini-Tower and Desktop one 120-pin connectorSmall Form Factor and Ultra Small Form Factor nonePCI Express x1 data width (maximum) – one PCI Express lane:Mini-Tower and Desktop one 36-pin connectorSmall Form Factor and Ultra Small Form Factor nonePCI Express x16 (wired as x4) data width (maximum) – four PCI Express lanes:Mini-Tower, Desktop, Small Form Factor one 164-pin connectorUltra Small Form Factor nonePCI Express x16 data width (maximum) – 16 PCI Express lanes:Mini-Tower, Desktop, Small Form Factor one 164-pin connectorUltra Small Form Factor noneMini PCI Express data width (maximum) – one PCI Express lane and one USB interface:Mini-Tower, Desktop, Small Form Factor noneUltra Small Form Factor one 52-pin connectorSerial ATA:60