Need a new USB Multifunction DAQ device

Hello,

Currently I use a PCIe - 6321 Multifunction DAQ device for controlling my stepper motor. I need to change the PCIe - 6321 and use the stepper motor with a USB Multifunction DAQ device similar to PCIe - 6321. I am not sure about which USB model to select. Can I please get some help regarding the selection of proper USB MIO DAQ device which works similar to the PCIe - 6321. 

Thanks,

Bharath J S