I understand that the PCIe bus has greater throughput than the USB 3.0 interface. That explains how you can get greater digital throughput from XTRX to host. That doesn’t explain how you can sample a larger RF bandwidth than the advertised capability of the LMS7002M. Granted, the advertised specs are a bit of a moving target:
From the LimeMicro LMS7002M product page: 120 MHz (through analog ports), 60 MHz (through digital interface)
From the LMS7002M datasheet: 48 MHz (through digital interface MIMO), 96 MHz (through digital interface SISO), 160 MHz (through analog interface)
BTW, I’m already a backer. Looks like an excellent product. Just looking for clarification.