Nintendo DS/Lite R4 flash card.

Brilliant Nintendo R4 flash card a essential for NDS gamers

 R4 Ultra Revolution SDHC cartridge

 USB 2.0 MicroSD/TF Card Reader

 Protective cart case

 Carrying Strap

Recommended card: Kingstone 2GB microSD

Most other cards are fine but some sizes bigger than 2GB can be tempramental.

Basically it allows you to put movies, music and games onto a single microSD flash card.

Very Long boring description of what this game chip can do:

-Support SDHC memory cards (compatibility up to 32GB)
-Change language of menu as you want without any limit
-As same size and thickness as original card
-No need to flash. Build-in launches Slot-2 (gba) function
-Support DMA read and no lag when using any microSD card
-Support FAT16 and FAT32. Can transfer files with PC, PDA, Cellphone and Camera
-Support clean rom and drag-drop to play. Fast loading
-Support NDS and iDS games. Run iDS games on any version of DS
-Write save files to TF card directly and no need manual backup or restore them
-Auto save type detection and no need to update save type list database
-Support Moonshell and home brew
-Power saving design. Enter optimization mode automatically
-Double screen UI. -Support display thumbnails of games
-Easy to use and setting
-Support button and touch operation both
-Support Wi-Fi and rumble package and browser expansion
-Support change back ground picture of menu
-Support change font color of menu
-Support brightness adjusts (DS Lite only)
-Support soft-reset
-Support AR cheat code
-Support soft-reset of Moonshell 1.6 (back to main menu of R4 Ultra)
-Support DLDI auto-patching
-Support Download play