PCIe slots are becoming a rarity on modern motherboards, as more and more devices are using NVMe as their primary storage interface. As a result, there are very few motherboards that feature PCIe slots that can support multiple PCIe devices.
In this article, we will discuss how many PCIe slots a motherboard typically has and whether or not it supports multiple PCIe devices.
The majority of modern motherboards feature between two and four PCIe slots. Some boards, like the ASUS ROG Maximus IX Hero, have six PCIe slots that can support multiple graphics cards and other PCI-E devices. However, not all boards have this many slots and not all of them support multiple devices.
For example, the ASRock Fatal1ty Z270 Gaming K6 features only two PCIe 3.0 lanes and therefore cannot support multiple graphics cards or other PCI-E devices.
PCIe 2.0 is limited to a single lane while PCIe 3.0 can support up to four lanes of data transfer. This means that if a motherboard only has two PCIe 3.
0 lanes, it is unable to support more than two additional graphics cards or other PCI-E devices. This is why some boards, like the ASRock Fatal1ty Z270 Gaming K6, only feature two PCIe 3.0 lanes – they are able to support two additional graphics cards but not any other PCI-E devices.