The SEL-3390S8 Serial Adapter is a PCI Express (PCIe) expansion card that is part of the SEL dependable computation for critical infrastructure computer line. It has been designed, built, and tested for use in harsh industrial and substation environments providing a wide operating temperature range; immunity to ESD, shock, and vibration; and may be ordered with conformal coating for corrosion immunity. The SEL-330S8 complies with the PCIe form-factor and may also be installed in other PCIe compliant computers or servers.