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Current release:For previous versions see version history.

Supported Operating Systems

RTX 32 Bit Version
RTX 64 Bit Version
RTX64 3.x
RTX 64 Bit Version
RTX64 4.x
Driver Version V2.x.x.x(tick)(tick)(tick)

IntervalZero has stopped the support of older version of RTX (,
therefore we have removed older CIFX RTX driver versions from our actual installation.
If an older RTX driver version is needed, please use the following table to select the approbriate CIFX RTX driver version.

RTX 32 Bit

CIFX RTX driver until V1.4.0.0RTX 8.1 / RTX2009 (>SP2 Update1) / RTX2011 / RTX2012
CIFX RTX driver V1.5.0.0RTX2012 / RTX2016
RTX 64 BitCIFX RTX driver until V1.4.0.0RTX64 (2013 SP1) / RTX64 2014 (SP2)
CIFX RTX driver V1.5.0.0RTX64 2014 (SP2) / RTX64 3.2
General Information


  • Based on the cifX Toolkit source
  • x86 and x64 (also known as AMD64) depending to the RTX version
  • Support for PCI, PCIe, PC/104, PCI-104, ISA netX based hardware
  • Unlimited number of cifX boards supported
  • (red star) Support for CIFX 4000 cards added
  • (red star) Support for CIFX M.2 cards added


  • Only one RTX® process can use the driver at the same time

CIFX Hardware Related Product Features

For more details click here.


The cifX Device Driver for IntervalZero RTX® is available as a dynamic library built around the cifX Toolkit. Any application which needs to access a cifX device can use the device specific functions provided by this driver library. The dynamic library is implemented as a RTDLL, which is the analog of an explicitly loaded windows DLL. The driver offers access to the Hilscher netX based hardware with the same functional API as the cifX device driver for Windows® and offers transparent access to the different devices.

For more details click here.

Road map

For more details click here.