I have recently bought an Kingston NV2 1TB M.2-2280 PCIe 4.0 x4 NVMe SSD
To put in the asrock b450 steel legend motherboard, this ssd is advertised up to 3500mbs, but as you can see from the screenshot it only gets up to around 2300mbs I know the slot is gen3 on the motherboard and the SSD is gen 4 not sure if that's why.
SSD speed - View: https://i.imgur.com/zhUZjD0_d.webp?maxwidth=640&shape=thumb&fidelity=medium
To put in the asrock b450 steel legend motherboard, this ssd is advertised up to 3500mbs, but as you can see from the screenshot it only gets up to around 2300mbs I know the slot is gen3 on the motherboard and the SSD is gen 4 not sure if that's why.
SSD speed - View: https://i.imgur.com/zhUZjD0_d.webp?maxwidth=640&shape=thumb&fidelity=medium