Functionality:
Compatible with all DS editions of different kinds of language
Supports Action Replay cheat
DLDI auto-patching
Support SDHC (Micro SD 4G,8G,16G,32G)
2nd generation storage device (no booting tool required)
Flush fitting slot 1 card
Uses MicroSD card, FAT16 or 32
Supports any MicroSD card speed with no lag in game
Supports Clean ROM, drag and drop. Works on any OS
Built in NoPass
Automatically detect save type
Save directly to MicroSD card, not to onboard chip
Supports Moonshell and other homebrew.
User friendly skinnable interface. Touchscreen or button operation
Supports rumble pak and memory pak
Supports the WiFi game, DS Rumble Pak, DS Browser
Supports changes of the background of Operation Interface
Support Skin DIY by setting background and font colors on Main Menu and Game Menu manually and automatically
Supports 4-scale-lightness adjustment ( DS Lite only )
Supports the Soft Reset.
moonshell 1.71 support Software Reset function( Press START key back to the R4 menu)

Dimension: 33*35*3.5mm
Weight: 5g

The box includes:
1* R4i TF Micro SD Adapter
1* USB MicroSD card reader/writer
1* Protect case

Package dimension: 135*107*26mm
Package weight: 66g