Check the listing for details. National Instruments USB-6001 Data Acquisition Card, NI DAQ, Multifunction. Condition: Used. Listed at 279.00 USD. National Instruments USB-6001 data acquisition card. Tested, fully functional, acquired from a US business and confirmed to be a genuine NI product. Some surface damage on the back from inept attempts to remove sticker residue (photos). Note that digital outputs on this device are LVTTL, 3.3V level. 8 AI (14-Bit, 20 kS/s), 2 AO (5 kS/s/ch), 13 DIO USB Multifunction I/O Device—The USB‑6001 is a low-cost, multifunction DAQ device. It offers analog I/O, digital I/O, and a 32‑bit counter. The USB‑6001 provides basic functionality for applications such as simple data logging, portable measurements, and academic lab experiments. The device features a lightweight mechanical enclosure and is bus powered for easy portability. You can easily connect sensors and signals to the USB-6001 with screw-terminal connectivity. For additional information, see NI product page.