The keyword refers to the third segment of a multi-part archive containing the USB flashable software for this specific hardware configuration. Hardware Specifications
TP.SK513S.PB802 1920x1080-1G-8G-ONVO-USB.part3.rar is — it’s the third volume of a compressed firmware or driver archive for a 1080p touch device with 1 GB RAM and 8 GB storage, likely an Android head unit or USB monitor controller. TP.SK513S.PB802 1920x1080-1G-8G-ONVO-USB.part3.rar
If you’re trying to find the other parts or documentation: The keyword refers to the third segment of
Putting it all together, the filename seems to describe a product or device specification file for a TechPro (or similar) product, likely a monitor or a low-end computer (possibly a Chromebook) with specific hardware and connectivity features, and the file itself is a part of a larger archive. You cannot open or use this file by itself
You cannot open or use this file by itself. Because it is labeled part3 , it is essentially one-third of a complete package.
: The brand of the TV (a Turkish consumer electronics brand).