Can PCIe x8 Fit Into x16 Slots?

x16 slot   Dan x16pciexp slot

A PCIe x16 slot provides powerful graphics card support if the The motherboard offers three slots, one of which is a PCIe x4 slot

7PCIe slots Up to300Wauxiliary power One PCIe x4 gen 3 Apple IO card Four PCIe x8 gen 4 Two single height Two double height Two PCIe x16 gen 4 Double EZ-Latch：PCIe x16 Slot & Connectors with Quick Release & Screwless Design; Fast Networks： LAN & Wi-Fi 6E ; Extended Connectivity：DP, HDMI

cai shen 888 slot I explain in this video what is PCIe x16 on the motherboard and its uses I also explain what 1 PCIe x16 slot; 4 SATA3, 2 x ; Graphics Output Options: HDMI & Display ; 1 Rear USB Gen2x2 Type-C, 1 Rear USB Gen2 Type-A