Please note, this is not from the original team R4. This was made by a different company which supports SDHC.

Functionality:

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. Open I/O interface
-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.
-Supports Action Replay cheat
-moonshell 1.6 support Software Reset function( Press START key back to the R4-III menu)
-DLDI auto-patching
-Full download play support

Package includes:
1 x R4-III Upgrade card
1 x USB 2.0 microSD card reader
1 x card case
1 x Hand Strip
CD may not be included. Please download software here.