How about Intel M10 Optane SSD(PCIE) with it ?

[datour]

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Intel Optane SSD with M10 (16GB) is only $5.41 on https://www.aliexpress.com，Does it work with CM4 ？

[pxpunx]

I tested an M10 and an H10 on a Compute Blade RC2 w/ a CM4 8GB Lite (CM4008000).

The M10 has 32GB of Optane memory, while the H10 has 16GB of Optane memory and a 256GB SSD (Intel 660p, I think?) onboard.

The M10 would not boot, but the H10 would.

However, both could be used as a secondary (non-boot) disk. The M10 as a 32GB disk, and the H10 as a 256GB disk. The 16GB of Optane memory on the H10 was not available. I still have some work to do in order to fully understand the difference between the two.

"With this concept, Intel is essentially combining two PCIe x 2 products on to one M.2 form factor so the device internally bifurcates the PCIe x4 lane into two PCIe x 2 lanes, one for the Intel Optane Memory cache and the other for the Intel 660P."

Source: https://www.asipartner.com/solutions/gaming/intel-optane-memory-h10/#MB%20Compatibility%20List

I'll update here when I have more answers.

[BarsMonster]

Tested on Raspberry Pi 5 - M10 16Gb does not boot (Failed to open device 'nvme'), but works as data drive, which is quite sad. Prices continue to drop - M10 is very attractive for boot drive on Pi.