Vita memory cards are too expensive and it would be nice to be able to use a microSD card. The 3G feature is pretty useless. Combing those two thoughts and I decided "what if we replace that modem with USB storage?" This works because the Vita's modem port is simply a USB 2.0 port that uses the miniPCIe form factor. A hacked Vita running 3.60 has the ability to load custom drivers, and it is just a matter of putting all the pieces together.
Features
- At the core of the adapter is the USB2244 chip, which is a SD to USB microprocessor. It is a high end chip (you won't find it in cheap SD to USB adapters) that has good power consumption and a long lifespan. It supports SD/SDHC/SDXC cards.
- You need to open up the Vita and replace the modem card. This is relatively simple and is akin to changing the battery. You can put in a large microSD card, install it, and forget about it.
- With HENkaku Ensō, you can use the adapter on boot
- Because there's extra space on the board, I also added two debug ports that the original modem uses to communicate with the Vita. Using them is optional. Developers and hackers can use this for their homebrew and hacks.
- All design files, Gerbers, schematics, layouts, BOMs, software drivers, etc will be public and open source. Anyone can produce the board as well as modify it.
Source
