This interface board has 5 digital input channels and 8 digital output channels. In addition, there are 2 analog inputs and 2 analog outputs with 8 bit resolution. The number of inputs/outputs can be further expanded by connecting more (up to a maximum of four) cards to the computer's USB connectors. All communication routines are contained in a dynamic link library (DLL). You can write custom Windows applications (Xp, Vista, Windows7) in Delphi, Visual Basic, C++ Builder, or any other 32-bit Windows application development tool that supports calls to a Dll. Source code samples for Visual Basic, Visual C++, Visual C , Excel, Delphi, and Borland C++ Builder are available. Hardware and software are downwards compatible with our previous versions... Basic product information: •• Operating instructions Languages: Dutch, English, French, German, Spanish •• Primary colours: Green •• Additional colours: Black •• Depth Unit: 3.8 cm •• Height Unit: 15.5 cm •• Width Unit: 15.8 cm •• Weight Unit: 152 g • Technical data: •• Specifications Kit & Modules: Digital inputs (0= Ground, 1= Open) (Built-in test buttons included) 2 analogue inputs with attenuation and gain options (internal test + 5V provided) 8 digital Open Collector Output Switch (Max. 50V/100Ma) (Built-in LED Indication) 2 Analog Outputs: 0 to 5V, Output Resistor 1K5 Pwm 0 to 100% Open Collector Outputs Max 100Ma / 40V (Built-in LED Indication) Up to 4 cards can be connected to PC General Conversion Time: 2Ms per command Uses Microsoft® Human Interface Device (Hid) driver, no external driver required. Diagnostic software, samples and dll can be downloaded through our website Power supply via usb: approx. 70Ma • Operating Characteristics: •• Coding: 2 •• Electronics Skill Level: 2 •• Mechanics Skill Level: 2 •• Soldering Skill Level: 3.