For some customers with requirements such as waterproof, Leangle offer a totally enclosed frame for that.
Usually, a Panel PC has some air vents on its back cover, this is a design for the fan cooling.
But water may get into the panel PC through these air vents, this may damage the mother board.
Based on these requirements, a frame do not have such air vents on the back cover is provided.
Leangle also protect the top of the PC, so all possible gap is at the bottom.
Then water splashing against the enclosure from any direction from any direction will provide no harmful effect, water projected by a nozzle against enclosure from at any angle up to 60° from the vertical will provide no harmful effect.
If customer has a requirement with higher level waterproof, like water projected by a nozzle against enclosure from any direction shall have no harmful effects, or ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water, Leangle will use waterproof glue to seal all possible gaps, so this enclosure will receive a higher sealing capability.