PXIe-8374 for USRP is not available.
The model requested is not available for purchase in your country.
PXIe-8374 for USRP
PXI Remote Control Module
MXI Express Interface Kit for USRP RIO, PXI Remote Control Module—The PXI‑8374 for USRP allows you to connect a USRP RIO device to a PXI or PXIe chassis. You also can use it to connect up to 18 USRP RIO devices to a single PXI chassis and then daisy chain those together for high-bandwidth and high‑channel‑count applications.