Input List will run on anything from a $35 Raspberry Pi to a $350 Intel NUC. If you want to go the cheap appliance route, start with a raspberry pi running Raspbian Jessie Lite.
Electronics
- Raspberry PI 3 - $36.23
- NooElec NESDR Nano 2+ - $23.95
- SanDisk Ultra 32GB MicroSD - $13.95
- BNC female to MCX male - $5.50
Enclosure
- Neutrik Panelmount USB - $9.95
- Neutrik Panelmount Ethercon - $12.30
- Adhesive Standoffs - $8.30