Starting at less than $500 each, the USB-6210, USB-6211, USB-6215 and USB-6218 devices draw power directly from the USB port, and therefore do not require an external power supply. They feature a new technology for high-speed data streaming over the USB cable, which results in a four times improvement in sampling rate over the vendor’s previous bus-powered multifunction DAQ devices. The devices are available with up to eight digital input and digital output channels and two 32-bit counter/timers.National Instrumentswww.ni.com800.258.7022