The first time I showed my SGX + Super CD 2 attachment on twitch the people that were watching made comments like...
"You could club someone to death with that thing."
"WTF, it's nearly half the size of you!"
"Does that thing even fit on a normal shelf?"
I do think it looks a bit fugly and I really like the black Duo's much much more. But this system mixed with the Arcade Duo card gives me access to every single game in the PCE/TG16 library.
Oh and I use a single power supply adapter.
I grabbed one of these.
http://www.ebay.com/itm/Small-Jumper-power-cable-for-Pc-Engine-Super-CD-Rom2-to-Super-Grafx-/111924999405?hash=item1a0f3ff4edThen I found this power supply and decided to give it a try and it works great. Although I cannot find it anywhere now.
Hmm, I can't seem to link it..... but the item description is Enercell 12VDC 1.5A AC-to-DC Power Adapter #2730461 Regulated & Filtered from the seller overstockoutletmemphis.
I was really happy to only have to use one power brick and I havn't had any problems with my system.