Sapphire AMD RX 470 Elpida 4G-Optimized ETH/RVN Mining Bios/29-32 MH/79-95 Watts No Video Card included, You are buying a copy of a tested tried, & proven mining bios that is ultra efficient for the AMD RX 470 GPU. This Mining bios only works on GPU’s with Elpida Memory… Please look at your gpu memory in gpu-z to confirm this is the right bios for your card.. This bios will work on most all brands so long as it is AMD RX470 4gb/8gb Based GPU with Elpida Memory. Please remember not all chips perform the same this is what’s known as “silicon lottery” some mem can be pushed to the limits and be stable others want to be clocked down. Make sure to adjust each card individually to maximize total production. Below is performance difference: Stock Bios: 20-25 MH / 130-150 watts / 55-70C tempsOptimized Bios : 27-32 MH at pool / 78-95 watts / 45-58C temps Recommended Afterburner Clock Settings:Core – 1150-1250 mhzCore Voltage: 950-1000 mvMemory Clock – 1900-2100 (depends on your memory stability) Why buy this mining bios? This bios has been tested on over 200 RX470 cards in our mining farm, and has been proven to be stable and efficient! When your mining, the most important thing is to keep costs down… When you get the electricity bill, this becomes very clear! When you’ll be able to cut your electricity costs buy as much as 50% and increase mining production as much as 40% its a no brainer! What’s included: 2 x Mining Bios file versions (power optimized & memory+power optimized)Bios install software (windows 10 or command prompt)Bios install instructionsIf you wish to have help installing we will be able to set up a one time anydesk remote session and we will be able to install the bios and optimize the mining settings for you on your overclock software. How does it work? Buy 1 Bios File (can be utilized on multiple cards)We can email the Bios file Kit to the email on your ebay profile.if you wish to have it sent to another email please contact us and send us the updated emailNo gpu is included, you will have to have your own gpu to program.