What is this thing sitting in slot 2 of my new DS lite?

What is this thing sitting in slot 2 of my new DS lite? ds lite gba slot Nintendo DS Lite HandHeld Console -- This is Refurbished Ds Lite HandHeld Console System DS Box New, Looks Like Original New • 1 X Nintendo DS Lite ds lite gba slot Nintendo DS Lite doesn't read games and needs new game cartridge slot reader In this

ds lite gba slot The DS Lite has a DS slot on top and a Game Boy slot on the bottom A Nintendo discontinues DS Lite handheld and ends support for GameBoy Advance

ds slot Odin Lite: The Odin Lite is AYN's budget listing It has the same Nintendo DS : Video > High Resolution 3D Rendering > ON Luckily I still have my gba sp2, as well as ds lite But it would have been nice to play them on the large screen of the 3DS XL