The National Instruments USB-6009 is a versatile and cost-effective Multifunction I/O device designed to facilitate a range of applications including portable measurements, simple data logging, and academic laboratory experiments. It offers an array of features, including 8 single-ended or 4 differential analog input channels with a sample rate of 48 kS/s and a resolution of 13 bits for single-ended and 14 bits for differential inputs. The device also includes 2 analog output channels with a 12-bit resolution and software-timed update rates, capable of outputting signals in the range of 0 V to +5 V. For digital interfacing, the USB-6009 provides 12 digital input/output channels that can be individually configured as input or output, supporting CMOS, LVTTL, and TTL logic levels.

Weighing only 3 ounces and measuring 3.22 x 3.55 x 0.91 inches (81.8 mm × 85.1 mm × 23.2 mm), the USB-6009 is engineered for easy portability and is powered directly via the USB bus, eliminating the need for an external power supply. The device is designed for straightforward integration with the NI-DAQmx driver software, enabling users to quickly set up configuration and measurement tasks. Additionally, the USB-6009 features a 32-bit event counter that supports edge counting with a minimum pulse width of 100 ns, further enhancing its utility in diverse measurement applications. The operating temperature ranges from 0 °C to 55 °C, with storage capabilities spanning -40 °C to 85 °C. Although the USB-6009 has been declared obsolete, it remains available for purchase through Apex Waves.