What Are Expansion Slots?

What is the difference between PCIe Gen 3 and PCIe Gen 4? pcie x16 expansion slot x16 The smallest slots are used by low-demanding cards whereas the larger x16 slot is pcie 4 slot PCIe slots Host a wide range of option cards to meet your application or program demands ; Rapid throughput x16 expansion cable supports high-speed data

pciex4 slot In ASUS 「PCIe x16 Slots - 7」