| ```python | |
| mapping = { | |
| "firepros": "unknown", | |
| "firewall": "unknown", | |
| "firewalls": "unknown", | |
| "firmware": "unknown", | |
| "firmwares": "unknown", | |
| "first gpu": "unknown", | |
| "five chip jally": "unknown", | |
| "flash drive": "unknown", | |
| "flash prom": "unknown", | |
| "flashdrive": "unknown", | |
| "flashed tplinks": "unknown", | |
| "flashlight": "unknown", | |
| "flat fuschia": "unknown", | |
| "flat top m3x5mm screws": "unknown", | |
| "flat washer": "unknown", | |
| "flat-red": "unknown", | |
| "flex duct": "unknown", | |
| "flex duct 12 inch": "unknown", | |
| "flgrx": "unknown", | |
| "flir": "unknown", | |
| "flir systems infracam": "unknown", | |
| "floppy disk adapter": "unknown", | |
| "floppy drive power connector": "unknown", | |
| "flowerp platinum 1300w": "unknown", | |
| "flux and solder": "unknown", | |
| "fly fishing gear": "unknown", | |
| "fly lead": "unknown", | |
| "fly rods": "unknown", | |
| "fly vest": "unknown", | |
| "foam": "unknown", | |
| "foam insulation": "unknown", | |
| "food dehydrator": "unknown", | |
| "foofighter's cases": "unknown", | |
| "forced air furnace": "unknown", | |
| "forged copper heat sinks": "unknown", | |
| "form factor desktop or 4u rack mountable (rack slides rj45 10/100 ethernet port cooling coolit direct contact liquid cooling system heat exchanger 2fans 5 x 120mm (3 front 2 rear) power supply 2 x 1100w power-one 80 plus certified platinum input rating 110-240 vac nominal power operating temperature 0c to 35c emissions compliance fcc / cesafety certification ul / ce": "unknown", | |
| "fortron 500w-750w single rail series": "unknown", | |
| "fortron epsilon series": "unknown", | |
| "fortron raider 750w": "unknown", | |
| "fortron raider s 750w": "unknown", | |
| "fortron raider series": "unknown", | |
| "fortrons": "unknown", | |
| "four pin connector": "unknown", | |
| "four pin fan extension": "unknown", | |
| "four pin wire": "unknown", | |
| "fpga": "unknown", # FPGA is a technology used in some miners, but no specific model is listed. | |
| "fpga 26 units": "unknown", | |
| "fpga assets": "unknown", | |
| "fpga bfl minirig": "bfl single 'sc'", # Assuming a close match to "BFL Single 'SC'", which is an FPGA miner. | |
| "fpga bitcoin mining (3 ztex quadra)": "unknown" # Refers to FPGA mining but no specific model matches. | |
| } | |
| ``` |