This cannot fit into the Dan A4 the same way as the Asetek 645. However, that method never really seemed right to me in the first place anyway. But this 92mm aio seems really good. It's the Eisbaer LT Solo and a recently released all copper radiator - both components are far superior compared to the Asetek.
Despite the fact the LT Solo's metal plate is now NOT copper like it's shown on the pictures, but silverly yellowish, like nickel - so that's definetly false advertising on Alphacool's part in both written and visual form. Even if you order the pump-block separately, directly from Alphacool, you're not getting it with the full copper orange plate (true story). False advertising on that product page too... Shame.
Still, it's a great product for the price. But how to implement it then? Well, this could make people consider 200mm gpu's and install the aio next to them, like how we can with 120mm aio's. There are several options of 2070 cards, like the ASUS Dual RTX 2070 Mini for example that still great and is 200mm, not to mention that Asus is about to produce a 200mm 3070 card.
The two would be perfect together. You could easily hook a 95 TDP 5800x with this setup and still have a 3070 under the hood - best of both worlds.
All we would need is a 92mm aio side bracket...
But even without that, it should be doable and would prove to be a pretty powerful setup in the Dan A4. However, even with those L-shaped fittings, this won't work if they are from the side, the upper tube could not go down in an angle that's steep enough, there's not much clearance left with just 48mm before the side panel. It's only possible if the fittings are either facing upwards (maybe even the M.2 heatsink needs to be removed). Or better yet, down. That would shorten the tube lengh, leave the M.2 heatsink in it's place and luckily they still won't interfere with the fan headers at the bottom of the board. Yet RAM should be low profile with tubes that thick - Corsair LPX Vengeance are still okay as they leave 16mm clearance which should be enough.