The ThinkCentre M920q has one M.2 slot and no dedicated Wi-Fi slot
One M.2 2280 slot for NVMe PCIe 3.0 x4 SSDs. No second M.2 for Wi-Fi — the single slot pulls double duty for everything.
One M.2 2280 slot for NVMe PCIe 3.0 x4 SSDs. No second M.2 for Wi-Fi — the single slot pulls double duty for everything.