*Question* What's GBA EXPLoader?

Basically, it lets you play GBA games if you have both a slot-1 and a slot-2 card.

More information would enable us to better assist you.

 

As far as i know/ (which is not far ), you can use exploader to start a .gba that's on the micro sd that's in the slot 1, and then, exploader will load it into the slot 2.

 

For what Slot-1 (DS) and for what Slot-2 (GBA).

 

The GBA EXPloader lets you basically flash a .gba game to the Slot 2 device. There is also more.
You can also set the Slot-2 Device as RAM for a patched Opera Web Browser.

 

does gbaexplorer allow a M3 GBA expansion card work with an non-m3 product?

 

yes, but without the extra features that only the m3 real can give (rts, cheats)

 

Is this true?

 

yes, it's true. i tried it myself. 0.53 of gba exploader added support for the m3 real gba expansion pack

 

I was talking about the other part of the sentence
I meant is it true it'll work without rtc in gba exploader (and now this question could be neglected as I realised that you said rtS not rtC)