NI USB-8451 Module For I2C SPI SMBus Interface Adapter | eBay
DLN-2 USB-I2C/SPI/GPIO Adapter
Lab 7: Serial Peripheral Interface (SPI) Communication - Digilent Reference
Using NI USB 8451 to read a DC SS500 SPI Sensor - NI Community
NI USB-8451 | National Instruments | Artisan - Price, Specs
National Instruments - NI USB-8452 I2C / SPI Interface Device | eBay
779553-50 NI | Test and Measurement | DigiKey
USB-8451 OEM Specifications - National Instruments
NI USB-8452 | National Instruments | Artisan - Price, Specs
NI National Instruments USB-8451 I²C/SPI Interface Device 192317-02L | eBay
National Instruments NI USB-8452 OEM I2C/SPI Interface Device | eBay
Labview | Techs it easy
How to perform Serial Peripheral Interface (SPI) communication with a data acquisition device using C# and the National Instruments DAQmx API. - CodeProject
Test and measure your digital circuits with LabVIEW from NI and the portable USB logic analyzer and digital pattern generator from Digilent - reichelt Magazin