MACOBOX includes a dedicated eMMC reader, which allows you to explore the internal partitions and files of an embedded system directly from its storage chip.

Connecting the eMMC Reader #
The eMMC reader is included in the MACOBOX kit and can be connected to one of the side USB ports.
⚠️ Important:
Always select the correct voltage on the eMMC adapter before inserting a chip.
Using the wrong voltage may damage the device or prevent communication.
Detecting the eMMC Device #
Once connected, open the eMMC page in the MACOBOX interface.
You’ll see a dropdown menu listing the detected eMMC device — typically shown as something like:
/dev/sda - 28.9G
This represents the external disk recognized by the system.
Starting eMMC Analysis #
Click the Start eMMC Analysis button.
MACOBOX will scan the device and list all detected internal partitions, for example:
/dev/sda1
/dev/sda2
/dev/sda3
Each partition entry includes:
- Name (e.g.,
sda1& KEYBOX PART) - Type (e.g., FAT32, ext4, squashfs)
- Sector information
- Whether the partition is readable
Mounting & Browsing Partitions #
If a partition is mountable, a Mount button will appear.
- Click Mount to mount the partition
- The button will change into a folder icon
- Clicking the folder will scroll to the bottom of the page, where you can:
- Browse internal files and folders
- Attach files to a project
- View or download files
This behavior applies to all mounted partitions — each time you click the folder icon, the corresponding contents are loaded and shown at the bottom of the page.

Tips #
- Make sure the chip is properly seated in the eMMC reader
- Always power down the adapter before removing or inserting an eMMC chip
- If no partitions are listed, double-check the USB connection and adapter voltage
- Unsupported or encrypted partitions may not be mountable
