'Half-Length' PCIe Slot Makes No Sense: PC Talk Forum

PCIe slots on a motherboard come in different sizes, referred to as “lanes” Common slot configurations include x1, x4, x8,

Card capacity and size · Slot 1: gen 4, up to x16 lanes · Slot 2: gen 4,up to x16 lanes · Slot 3: gen 4, up to x8 lanes

pcie 4 in pcie 3 slot 1) Mechanical Lane requirement: the type of PCIe slot required by the card “x8 x16”

pcie 4 card in pcie 3 slot Card capacity and size · Slot 1: gen 4, up to x16 lanes · Slot 2: gen 4,up to x16 lanes · Slot 3: gen 4, up to x8 lanes