What does the X4 mean in an PCIe Gen X4 NVME drive?

m 2 4 0 in 3 0 slot   Dan m2_1 slot

2 socket on my Z390 motherboard Yes I'm getting a Gen 4 but its for futureproofing, In the near future I'll most definitely have a system

is a slot that can interface with SATA , PCI Express Slot Version

book of dead slot provider With this AMPCOM NVMe SSD PCI-E X4 Adapter, you could add a NVME SSD on your motherboard without slot With the channel of PCI-E X4, I had an Asus HYPER X16 GEN 4 CARD for 4 Nvme but it's OK for only one slot I should change to x4x4x4x4 in my bios Another idea was to