3x PCI-E x16 slot. 4x SATA 6G. 4x USB 2.0 (Front). M.2_2 Source (From CPU) supports up to PCIe 4.0 x4, supports 22110/2280/2260 devices. M.2_1 Source (From CPU) supports up to PCIe 5.0 x4, supports 2280/2260 devices.
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