M.2 SSD only works with PCIe 3.0 x 1?

MiniPC Larkbox X
1

Hi, I just exchanged the internal SATA-SSD with a brand new PCIe 4.0 SSD, but it only works at PCIe 3.0 x 1 with 890 MB/s. Is this normal? Shouldn’t it work at PCIe 3.0 x 4, or did I miss something? Thanks for your help.

2

Our PCie is 3.0 x1
Tell you your serial number just to be sure and check

3

My Serial is:
SLarBXGZ1H240504268