Is this for real? The store, which looks pretty amateurish, has no products for sale ("out of stock") and the prices are vastly too good to be true.<p>DDR3 memory for 40c per gigabyte? Cheapest I can see on Amazon is 5 times that. 256GB of memory (plus the board itself) for $280? Not possible.<p>Sorry, I don't believe it.
It seems these are not produced any more? [1] If someone is currently manufacturing a battery/capacitor backed memory card that accepts several DIMM's of the recent memory modules <i>like 32GB+ ea.</i> I would be interested. There should be benchmarks from a popular 3rd party reviewer.<p>[1] - <a href="https://superuser.com/questions/1508905/is-there-a-modern-ram-drive-hardware-pcie-memory-drive" rel="nofollow">https://superuser.com/questions/1508905/is-there-a-modern-ra...</a>
An underrated use case for this would be for storage of sensitive information. Information stored on a non volatile device is difficult to erase (Format NVM/ATA Secure require power cycle, hard drives require time to actually wile). Even if the data is encrypted, it is vulnerable to xkcd's "rubber hose decryption".<p>With DRAM, the storage media itself is fairly volatile and power removal/memory content initialization should be much faster.
What is the competitive advantage of this versus NVMe? Their 1TB ramdisk is $1000, while a Gen 4 NVMe PCI-e card gives the same speeds in a smaller and more standard format for $150-$200.
Out of interest, would you get a similar bandwidth using DDRx on this card over PCIe, to using DDRx in the standard memory sockets on a motherboard<p>Edit:
Looks like the slowest DDR4 gives 19200 MB/s
<a href="https://uk.crucial.com/support/memory-speeds-compatability" rel="nofollow">https://uk.crucial.com/support/memory-speeds-compatability</a><p>Not sure what PCIe that card supports is though
There is a lot more technical information at <a href="http://ddramdisk.store/" rel="nofollow">http://ddramdisk.store/</a>.<p>It's slower than RAM, runs at around full pcie 4x speed of 7GB/s but it upports way more capacity than most boards would allow.