External Graphics : External graphics support provided through the PCIe 3.0 x16 bus connector. PCIe 2.0 x16 (x4 Lanes) : 1. PCIe 3.0 x16 (Blue) : 1. PCIe 2.0 x1 (Black) : Either Option. PCIe 2.0 x1 (Black) : 1.
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