- Motherboard Slots

On newer processors both the first x16 and first NVMe x4 slot both come off the processor The block diagram for your motherboard is going to be

Unlike standard HDDs and SSDs, drives aren't connected to a motherboard via a cable, they're instead plugged directly into the motherboard

m2 expansion slot To make it easier to tell which drives can be mounted on a motherboard or PCI-E card, the width and height of both the drive and slot is usually

m2 slot pc PCIe slots use NVMe, which is a communication protocol that leverages the increased bandwidth to support faster NVMe SSDs, which isn't present in SATA M