Taken from this post: https://www.reddit.com/r/watercooling/comments/pjyiv5/finally_finished_my_hardline_build_in_everyones/hc28m3h/?context=3
This is the first Acetal version of the block I have seen in the wild. It looks pretty nice. The RGB is a light bar instead.
Acetol version of the Block has been out since release....I got my first one in March for my 3080.(pics in Mods Rig)..will be swapping that one over to 3080Ti...I've never been a fan of clear acrylic at all...4 different series of EK Waterblocks have all been Actetol ...they pair up nice with the Nickel backplates.
For controlling RGB lighting with any Asus Board...plug in RGB cable to any RGB header on your Mobo, then easily control lighting effects with Asus Aura software.
I have a "notify" in with EK and am planning on trying out the active backplate....considering how toasty warm the Nickel backplate gets under heavy load, I'm quite sure the Active Backplate wil be quite effective....love the idea of "sandwiching" the PCB between Water Blocks...very cool EK !!