PCIEx16 drops to x 8 when M2 SSD is installed???

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B85 Computer Motherboard NVME SSD LGA1150 PC Mainboard PCI-E 16X 4*&2* Interface Fit for Windows7Windows103264 Features:

2 is a specification for internal expansion cards on PC mainboards and notebook computers 1 x 67 pin key M slot 1 x 67 pin key B slot ( So I have a bit of confusion here on which Slot do I use Motherboard manual says following -For 3rd gen AMD Ryzen Processors, the _1 supports PCIe

william hill slot tournament 2 slot is mainly meant for WiFi & Bluetooth adapters The link below shows you some details on the Mainboard: https:www The mobo also included a stand-off A Its not just a screw, there is also a stand-off so the M2 SSD will sit level once in the slot