The National Instruments PCI-6123 is a high-performance Multifunction I/O Device designed for a wide range of applications, including high-energy physics, ultrasound and sonar testing, and transient recording. This device features eight analog input channels with pseudodifferential configuration, 16-bit resolution, and an absolute accuracy of 4960 µV within a ±10 V range. It supports a maximum sampling rate of 500 kS/s per channel, allowing for rapid data acquisition. The PCI-6123 includes eight bidirectional digital I/O channels compatible with TTL/CMOS logic, operating at frequencies up to 10 MHz, alongside two 24-bit counters/timers. Trigger functionalities encompass both analog and digital options, with user-programmable hysteresis and TTL-compatible digital triggers boasting a pulse width of 10 nanoseconds.

Physically, the device features a 68-pin male SCSI-II type I/O connector and measures 12.3 x 4.2 inches. It employs the PCI Bus interface, fulfilling both master and slave roles to meet operational requirements. The recommended operating temperature range is 0 to 50 °C, with a storage temperature range of –20 to 70 °C and a non-condensing humidity range of 10 to 90% RH. The PCI-6123 is compatible with several software development environments offered by National Instruments, including LabVIEW, Measurement Studio, and LabWindows/CVI, as well as various programming languages such as Visual Basic, C/C++, and C#. It operates effectively with the NI-DAQmx driver and complies with safety standards including IEC 61010-1 and UL 61010-1.

Although the PCI-6123 has entered the NI Maintenance phase as of March 31, 2022, it remains available through Apex Waves for purchase, resale, and repair. Users can access user manuals and maintenance documentation online. For pricing and further inquiries, please contact a sales representative.