I saw this posted elsewhere the other day and it's a GDEMU with the updated fw.
https://aliexpress.ru/item/100500346991 ... 21bdfJ2ssV As for deciding between GDEMU And MODE, I've got both so can give a reasonable rundown on them.
* both as as easy to install as each other. Remove the GD-Rom and place it in.
* OpenMenu on GDEMU really helps get it closer to having better functionality and hopefully over time that will only get better MrNeo does more work on it. the MODE menu is easier to navigate as you can structure your folders how you want them. The cover art for MODE is hit or miss as you're at the mercy of the Terraonion database being updated with all variants, where GDEMU stuff is either reliant on the PVR from the disc or the community updating the covers for OpenMenu.
* MODE accepts more file formats as standard. my understanding of GDEMU is that the file types are based on whichever menu you're using. OpenMenu (last time I checked) didn't officially support CDI which was surprising to me as I just assumed the fieltype was dictated by the device and not the menu. being able to throw any DC file at the MODE is really nice as it's one less thing to worry about as you don't need to think if your ODE can handle it or not.
* MODE is a dream to put games onto. create a folder called dreamcast and anything within that will show up on it. structure it how you want and there's no need to use any apps to sort all the folder structure etc for you like there is in GDEMU. its not a huge ballache but it's another level of annoyance if you run into issues.
* Price. MODE is sooooo much more expensive than a cloned GDEMU, but not too far off an official one if you can get it. that in itself is a deal breaker for some. the price difference between a MODE and cloned GDEMU should give a level of comfort as you're getting an official product that will be supported but with the new clones coming out with the updated fw then it's kind of a moot point.
* as Ian said, Bleemcast stuff doesn't work on MODE. hardly a big ticket item as the Bleem stuff is reasonably niche IMO given how easy it is to play PS1 stuff elsewhere but it's very much a nice addition. I've never lost sleep over the fact I can't play bleem stuff on my MODE but that's just me. you may feel differently.
All in all, it's a tough one as there's merits to both but I think ultimately it'll all boil down to cost. if you can stomach the money and don't mind missing out on Bleemcast.... go for MODE. to me it just seems a little more robust in what it can handle and the drag and drop functionality is nice when putting stuff on it. If you can't afford it and can make use of Dubcity's amazing collections on here pre-formatted for GDEMU then go for that one. there's a little more work involved in getting stuff onto your SD card but once the initial setup is out the way with it shouldn't take too long to do.