> For the complete documentation index, see [llms.txt](https://8bitmods.gitbook.io/manuals/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://8bitmods.gitbook.io/manuals/getting-started/preparing-storage.md).

# Preparing storage

MemCard PRO2 needs a microSD card or a USB drive. The microSD card is checked first; if none is found, the device tries to mount a USB drive.

## microSD card

1. Format the card with the [SD Association formatter](https://www.sdcard.org/downloads/formatter/). FAT32 and exFAT are supported.
2. Download the latest firmware package from the [8BitMods downloads page](https://distribution.appcake.co.uk/install/8bitmods/apps/memcard-pro2/public).
3. Copy `mcp2.bin` and the `os` folder to the root of the card.
4. Insert the card and power on. The firmware is flashed on first boot.

{% hint style="warning" %}
Use a Class 10 / A1 or faster card. Slower cards work for 8 MB cards but struggle with larger PS2 cards and with MMCE game loading. If a card is unreliable, try **Menu > SD Mode > Compat (slower)**.
{% endhint %}

## USB drive

A USB drive can be used instead of a microSD card. It must be:

* formatted with an MBR partition table and a FAT32 or exFAT partition
* externally powered, or plugged in through a powered hub, since the console's memory card slot cannot power most drives

The `os` folder and firmware file go in the root of the drive, exactly as for the microSD card.

## Files the device creates

On first boot the device creates the `PS1` and `PS2` folders and the first virtual memory card. See [SD card layout](/manuals/virtual-memory-cards/sd-card-layout.md).


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