They are equipped with both current and legacy I/O ports including serial, ExpressCard, PCMCIA, VGA, and others that are commonly used in outdoor environments. The levels of ruggedization are not standardized, but they are measured by various certifications such as MIL-STD-810, IP, or ATEX.
The text describes devices that are built for outdoor use and have a range of input/output ports. The level of protection against environmental factors is not uniform but is measured by specific standards like MIL-STD-810, IP, or ATEX.