Express Systems will have an EARLY CLOSING Wednesday, July 3, 2024 and will be CLOSED Thursday, July 4th, 2024 and Friday, July 5th, 2024 in observance of The July 4th Holiday. We will resume regular business hours Monday, July 8th, 2024 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.