National Instruments USB-6349 Multifunction I/O Device 

The National Instruments USB-6349 (Part Number: 785816-01) is a USB Based Multifunction I/O Device with 32 analog inputs, 24 digital I/O lines, and 2 analog outputs. This device is designed to support simultaneous sampling at rates up to 500 kS/s through the analog inputs and up to 900 kS/s through the analog outputs. The NI USB-6349 comes equipped with a USB 2.0 bus connector that can be used for integration and connection with a PC, laptop, or other devices with the universal serial bus. 

The analog input channels of the NI USB-6349 Multifunction I/O Device can operate over an input range of ±10 Volt to ±1 Volt while operating in differential mode. Out of the 24 TTL DIO lines, 16 can be timed up to 100 MHz through hardware. The NI USB-6349 comes equipped with four 100 MHz, 32-bit counters. You can use these counters or timers in a variety of applications where precise measurements are required at a certain time interval or for triggering an internal channel or an external device.

The National Instruments USB-6349 Multifunction I/O Device has 128 screw terminals for I/O connections, which are designed to accept 24 AWG to 16 AWG cables. National Instruments recommends warming the device for 15 minutes before operation. The NI USB-6349 requires a 30W, 11 VDC to 30 VDC power supply. This device should be powered with an NEC Class 2 DC source. This Multifunction I/O Device comes with a 1-channel, integrated frequency generator with 10 MHz, 20 MHz, and 100 kHz base clocks.