Academy Duel Disk

Academy Duel Disk: A streamlined version of the second Duel Disk. This is the standard Duel Disk issued to students of the various Duel Academies established by Seto Kaiba in the Yu-Gi-Oh! GX series. Aside from the obligatory alternate folding feature, and a cosmetic refit, this Disk functions identically to the second Duel Disk.

There is real life version of this duel disk too, but this one can be used with sleeved cards.

There are also several variants to the Academy Disk featured throughout the anime and manga series.