Dell OptiPlex 990 desktop

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with dual PCI-express slots. The OptiPlex 990 also sup- ... 2 external 5.25” ... 1 full height PCIe x16 (wired x 4) 1 full height PCIe x1 1 full height PCI 1 half height PCIe x16 1 half height PCIe x16 (wired x 4) 1 half height PCIe x1 1 half height PCI 1 half height PCIe x16 1 half height PCIe x16

  Express, Ipec, External, Optiplex, Pci express, Optiplex 990, Pcie x1