hardware nintendo ds - What's inside a DS Lite slot cover?

So I l'm curious as to why my DS Lite's GBA slot cover has gold pins on it, if it's just a dummy cartridge to act as a dust cover and to

ds lite I cannot find where to slot it in Any ideas Jan 3 my ds lite will read gameboy advanced games but it wont even read a ds game

dsi gameboy slot Original Nintendo DS Lite DSL GBA Slot Cover 2 Dust Cover FREE SHIPPING *USA* Pre-Owned: Nintendo $ Free shipping

ds lite gba slot However, the new model lacked a slot for GBA games and more protection from Hebrew software was added to the console You couldn't even use emulators with the