Best Value Mining GPU 2020 RX470 4GB 30+ mh/s For $50 Bios Mod Best Bang For Buck Ethereum 2.0

I picked up these two Radeon RX470 on ebay for $100. I was able to get a stable 30+ megahash out of each card. I had to bios mod them but its pretty easy in HiveOS. The cards are identical but have different kinds of memory. One has Hynix and the other Samsung. I'm not worried about the Ethererum DAG file size. I will just start mining other coins when is Dag file goes over 4GB. Ethereum 2.0 is going to make GPU mining absolite anyway. Below are my overclock settings for HiveOS

Core Clock = 1125
DPM = 5
Memory Clock = 2000
Aggressive Undervolting = On
AmdMemTweak = 30

Mining Chassis In This Video
https://www.amazon.com/gp/product/B07H44XZPW/ref=as_li_tl?ie=UTF8&tag=fintechcomm0f-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B07H44XZPW&linkId=5a93d07ef917026f77c22cf9636a3a93

My Next Board
https://www.amazon.com/gp/product/B07BKT9Q6L/ref=as_li_tl?ie=UTF8&tag=fintechcomm0f-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B07BKT9Q6L&linkId=cf4c5f0c03e41066ddbae1292b0a7b3b