Here is where the "3DS" name gets tricky. The K73 features two physical screens. However, unlike the Nintendo 3DS, the bottom screen is in many firmware revisions. On most K73 units, the bottom screen is simply a large second display used for maps, inventory, or a static logo.
The Asus K73 series was a popular line of 17.3-inch laptops known for their large screens and dedicated GPUs. k73 3ds
The is a fascinating piece of grey-market hardware. It represents the limit of what a $30 processor can do inside a dual-screen clamshell. It succeeds as a novelty and a conversation starter, but it fails as a primary gaming device. Here is where the "3DS" name gets tricky