Official Support Site: www.r4ultra.com

R4 Ultra DSi (R4Ui) Description:

R4Ui (R4i) is a SLOT-1 flash card for NDSi series consoles. It's the same size as an original card. It supports SDHC, has multi-media features, and can run that most games and homebrews. It is a equipment that have to been owned for the global NDSi series player.

Features:

SLOT-1 flash card supporting the latest Nintendo DSi/NDSi console (also supports NDS and NDS Lite) 
Same size as an original cards 
Supports SDHC microsd/transflash TF memory cards 
Multi-media features 
Runs that homebrews and games 
Multilingual interface (simply download system files in the desired langauge) 
Currently features English, Japanese, Chinese (Traditional and Simplified) menu system languages 
Intuitive touch screen menu system 
USB 2.0 TF card reader/writer included

Shipping Package Contect:

• 1. R4Ui Card New White Packing
• 2. 1 x USB microSD memory card reader / writer