Game Boy Advance Sp Usb Driver

I've been making plans for a new GBA flashcart that I may or may not sell. As a controller for, say, a GB or NES emulator on a PC through USB. With 'Nintendo GameCube – Game Boy Advance link cable' to link to the GBA.
If it's the same as STALKER: Shadow of Chernobyl then you have to create the folder yourself. 
Flash games directly onto this smart card and play directly on your Game Boy Advance, Game Boy Color, Game Boy DMG, Game Boy Advance SP. - Built in 64M capacity. (2 pages, 32M per page) - Supports GB / GBC / GBA / GBA sp.etc. - Supports GB / GBC ROMs. (include LSDJ) - Multiple game ROMs burning is allowed. - Connect to PC via USB cable. - Supports Windows XP / Vista / Windows 7.
- Easy replaceable battery (for SRAM). No soldering is needed.
** Game saver is stored in SRAM. It could only store one game saver at the same time.
** No game ROM is built in the card, nor included in the package. ** Also compatible with GB Transferer I & II. Drivers: Mini USB cable not included.