Well...

I don't really prefer little to no IO. But due to high demand for "thinner devices" , "longer battery life" and "less bulky" from my beta test users, I decided to try and make a thinner, lighter version with less USB ports. And, here are the results!

(Yes, the inductor is exposed out of the 3D printed case just to save an extra 2mm from the top case)

This is the bottom view of the device with a label

In case you wonder what is the drawing in the background, that is the ArOZ Online Cluster System that is planning to implement into this devices. More detail will be released soon.

How can it be so thin? I leave out the FE1.1S USB Hub (and two USB port), glue the top and bottom case together (to save the space for screws) and removed one of the battery from the dual battery system. And the most important one should be the replacement of the LiPo charging and boost converter to a custom made board that is hand soldered. I will publish more information on the board as well after the stability test.

So, how thin is it compare to the old versions?

The latest version has a thickness of 1.2cm while the last generation has a thickness of 2.2cm, nearly half of the height has been stripped away. Length wise, it is also 1.4cm shorter than the previous version thanks to the removal of two IMPORTANT USB PORTS.

To be honest, with a large enough Micro SD card, it is definitely enough for a buffering devices like this. But I still think having an extra USB port lying around isn't a bad things as the smartphone and laptop nowadays have no support over standard USB A ports just like the Macbook :((