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Raspberry Pi PCIe Devices

Raspberry Pi PCI Express device compatibility database

KIOXIA BG4 M.2 NVMe SSD

KIOXIA BG4 M.2 NVMe SSD
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Description and Notes

KIOXIA’s BG4 M.2 NVMe SSD drive drive is an inexpensive NVMe SSD commonly used in laptops that is mostly available used.

It is an inexpensive SSD that doesn’t include any DRM, and relies on a technology called NVMe Host Memory Buffer (HMB) that essentially moves NVMe cache to the system RAM.

Using my disk-benchmark.sh script, I got the following performance numbers on the Pi CM4:

Benchmark Result
fio 1M sequential read 192 MB/s
iozone 1M random read 170 MB/s
iozone 1M random write 157 MB/s
iozone 4K random read 29.71 MB/s
iozone 4K random write 54.50 MB/s