Express Systems will have an EARLY CLOSING Friday, May 26th, 2023 and will be CLOSED Monday, May 29th, 2023 in observance of Memorial Day. We will resume regularábusiness hours Tuesday, May 30th, 2023 at 9:00am EST. Wishing everyone a Happy & Safe Holiday Weekend!
Serial cards deliver reliable, cost-effective and high serial port expansion; multiple form factors are available. Serial cards will enable you to easily add RS232, RS422, RS485 serial or parallel ports to your PC or server.