Express Systems will be Closing EARLY Wednesday, November 24th, 2021 and will be CLOSED Thursday, November 25th, 2021 & November 26th, 2021 in observance of the Thanksgiving Holiday. We will resume regularábusiness hours Monday, November 29th, 2021 at 9:00am. 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.