Teamgroup’s MP44Q — a new host memory buffer (HMB/DRAM-less) SSD popped to the top of the performance charts for that category ... The MP44Q is a host memory buffer, NVMe/PCIe 4.0 SSD that ...

delivering impressive speed performances compared to NandFlash memories. The SSD manufacturers will have to deal with low latency SSD controller design in order to benefit from the new NVM features, ...

both in speed and reliability. [Jeff] also notes that you can use an NVMe SSD through a PCIe switch on the Pi 5 if you so desire, but you can’t currently boot with this configuration.