Bumping the topic in case these higher coin values have increased interest in something like this.

Yes, if you take advantage of the built-in PCIe-over-USB-cable ports in addition to standard slots. Typical Chinese riser boards and likely additional power needed for those extra 6.

I've looked everywhere for a supplier and ASRock's sales rep confirmed it never had a full retail run. If you find a supplier, certainly let us know. As for the BIOS, we'd be asking for at least a recent AGESA as part of the package. I'm not especially interested if we can only work with older chips; the whole interesting thing about this board is having a modern+fast chip vs the typical Celeron setup.

A few folks have balked at the cost. My "under 200 USD" estimate is truly just an estimate. Absolutely no negotiation happened with ASRock outside of quantity. It could easily end up being cheaper if this ever happens.

Sadly, there's a good chance the AM4 socket will be old tech by the time we get enough orders + shipping. I still hold out a glimmer of hope. Thanks to those who have responded.

Depends on your workload. It's my preferred platform for CryptoNight on CPU while the GPUs work on other things. It also has the SHA-NI instructions if you do hash verification on the CPU, and the Intel platform does not.

ASRock has let me know that their minimum order size would be 500, oof. Totally understandable from their perspective, but it could be hard to find that much interest. Definitely continue to let me know if you would want in, though.

In the meantime, I'm reaching out to possible retail partners and mining/learning/passrecovery farms. Without such a partner, I don't see us reaching that number.

If you need to verify my personal details or otherwise establish trust, feel free to PM me with any questions you might have. My own interest is just wanting a couple of these.

Just before the last market crash, motherboard manufacturer ASRock designed a Ryzen motherboard targeting GPU miners with 8 full-size spaced PCI Express slots plus an additional 6 PCI-Express-over-USB-cable slots for the typical Chinese riser cards. The design was shelved when cryptocurrency fell in value against state currencies once again.

I've been chatting with ASRock Sales to see if a group buy could be established to have ASRock do a production run and that's why I'm reaching out. I want to see how many of you would commit to purchase units even if just one, and the max price you'd be willing to pay. I won't be passing price points along to ASRock as they've only asked about quantity so far. My initial guess would be this would be just under $200 per board.

The model was X370 Pro BTC+ and the details page with specs is still up here:
https://www.asrock.com/mb/AMD/X370%20Pro%20BTC+/

Here's a photo of a pilot unit in the wild from a convention:
https://www.reddit.com/r/EtherMining/comments/8pcy2v/asrock_x370_pro_btc/

Before you raise your hand up for this, there are a few caveats:
- The dimensions of the board are not standard ATX. Custom chassis or framing may be required on your part.
- There is an M.2 SATA port, but not M.2 NVMe due to focusing PCIe lanes on compute devices.
- The board supports more than one ATX power supply for power, but ASRock has provided little technical documentation on usage.
- I will ask ASRock for UEFI updates (including AGESA) for at least a year following the purchase, but there's no guarantee they'll agree.
- If ASRock didn't already print this many units, it could take them some time to produce.
- I would be purchasing for North America territory, but would consider shipping internationally to those with a great deal of patience. If there's enough interest in another non-NA country, I could also inquire about direct-shipping some quantity to a trusted party in that country.