I have found the attached image of an unknown Virtual Boy adapter board on a Japanese blog. Has anyone seen something like this before or has any idea what this might be? Something official or homebrew hardware? Looks official to me, maybe a part of development hardware? I tried to contact the blog owner about this but with no success.
The Japanese text also does not give many clues, besides it being a “Virtual Boy expansion board” and “very valuable”:
さて、
そういえば、この前のOFF会の時にマカオさんから頂いたモノがあり、
紹介してなかったので、改めて紹介します。それはコレ！
{Image}
バーチャルボーイ吸出し拡張基板！ヽ(^◇^*)/
これもかなりの貴重品です。
ってかね・・・
私バーチャルボーイのカセット一本も持ってません（笑これから中古でカセット買わないと・・・（笑
これも表面的には部品点数が少ないように見えますが、
実は二重基板構造になっており、非常に複雑です。コレも実はクーロンさんの作かな？
その部分は確認忘れちゃいました・・・（笑
ちゅー事でですね・・・
English translation, via Google translate:
Now,
Speaking of which, there are things I received from Mr. Macau OFF at the previous meeting,
WW I introduce to introduce anew.It This!
{Image}
Expansion Board Virtual Boy sucking! ヽ (^ ◇ ^ *) /
It is also quite valuable.
I Tteka
Temasen Virtual Boy also has a single cassette of me (laughsNow used to buy cassette (laughs
On the surface it looks like even low parts count,
And dual board structure is actually quite complex.Coulomb’s work that I really well?
Forget that part sure Chaimashita (laughs
It is over by Chu
Here’s the post: http://higurashi.asablo.jp/blog/2010/09/23/5362095
Attachments:
2½ years later, I was on another Google Images search trip, when I came across the following blog post: http://orzmaster365.blog60.fc2.com/blog-entry-408.html#container
So, this thing is the Virtual Boy adapter for a multi-system dumper called “Win Hong Kong”. Seems this the first and only commercially available dumper that ships with a VB adapter.
