● 48 parallel digital I/O lines

● Can generate interrupts when inputs change

● All 48 I/O lines buffered by transceivers on the card

● Pull-up resistors for CMOS and contact closure inputs

● Four- and eight-bit ports independently selectable for I/O

● Crosstalk suppression by grounds on all even-numbered cable conductors

● 50-pin connector for compatibility with industry standard I/O mounting racks

● Automatic Test Systems

● Laboratory Automation

● Robotics

● Machine Control

● Security Systems, Energy Management

● Relay Monitoring and Control

● Parallel Data Transfer to PC

● Sensing Switch Closures or TTL, DTL, CMOS Logic

● Driving Indicator Lights or Recorders

Drivers for various operating systems are also provided, including active support for Windows XP -> 10 — all in both 32-bit and 64-bit flavors, and including consumer, server, and embedded varieties — as well as the 2.6 and newer Linux kernels and recent OSX / macOS versions. Many products continue to ship with driver support for Windows 95, 98, Me, NT4, and Windows 2000, but support for these operating systems is considered deprecated.