How to find out if your computer has a PCI express x16 slot

How to find out if your computer has a PCI express x16 slot pcie x16 expansion slot Card capacity and size Mac Pro has eight PCIe x16* sized slots that accept many different types of PCIe cards: Slot 8 is x4 in size Mac Pro Expansion pcie 20 x1 slot expansion slots from ISA to PCIe The video I mention at the end about PC motherboards is

pcie 20 x1 slot slot, even if that slot can physically accommodate an x16 card So remember, when buying expansion or upgrade cards for PCI Express slots

pcie slot configuration gen1 gen2 gen3 PCIe expansion slots, including x4, x8, and x16 PCIe slots There are various peripheral cards you can use with PCIe x1 expansion slots  PC music specialist Martin Walker replies: Personally I'd go for more x1 slots, since even the simplest PCI Express expansion slots support an x1 link — one