Express Systems will be Closing EARLY Friday, December 30th, 2022 and will be CLOSED Monday, January 2nd, 2023 in observance of the New Year Holiday. We will resume regular business hours Tuesday, January 3rd, 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.