Sealevel System Inc.

Sealevel Systems, Inc. reinvented the I/O and industrial computing industry with the first RS-422/485 communication adapter for the IBM PC.  Since 1986, Sealevel has continued to redefine design, engineering and manufacturing for industrial computers, Ethernet serial servers, USB serial, PCI Express and PCI bus cards, and IoT hardware and software.  Sealevel is committed to a first-in-industry lifetime warranty on I/O and long-term availability of all products, beyond the life of your mission.