Please do support the original creator of this great emulator: Mr. Steve White   

This is the standard Pi1541, real-time, cycle exact, Commodore 1541 and 1581 disk drive emulator as intended by original creator
Can run only on Raspberry Pi 3B, 3B+ or 3A+. Don't try with other versions of Raspberry Pi, will not work.
We don't sell the Raspberry PI board, you will need to source it by yourself.  

This is the most complete design and will allow support for both options: A and B.
Thus it will allow you to connect other devices on the serial bus if you need to. 

The kit includes: 

PCB + I2C LLC + all needed components + OLED