I noticed on the RME site it says:
HDSPE AES NOT AVAILABLE UNTIL FURTHER NOTICE!

I'm guessing this is due to supply chain issues and parts scarcity but I just wanted to voice my support for this product and I hope that it does not get discontinued permanently.

I own two of these cards so I don't have an immediate need to buy one, but it would be a sad day if they were no longer available for the long term.

There is nothing else on the market that compares to the RME AES card.