Creality Silent Mainboard advantages
 
Silent function( Customized and Non-standard matching)!
The TMC driver is super quiet!
Bootloader installed (ISP/USB Arduino)
Suitable for Ender-3/Ender-3 Pro /Ender-5/Ender 5 Pro（The Silent Mainboard of Ender 5 Pro V4.2.2 and V4.2.7 shipped randomly）
Firmware 4.2.7 comes pre-installed on this board 
This new upgraded silent motherboard is currently not pre-installed on our Ender 3, Ender 3 Pro, and Ender 5 printers.
At this point, the silent motherboard is a separate upgrade for all Enders.
The firmware for Ender 3 /Ender 3 Pro / Ender 5 comes pre-installed NOW
You just plug them in and start printing!

Note: If you want to update the latest firmware, please check which motherboard your machine is equipped with.
Notice: Not applicable to Ender 3 V2 

If your machine comes with an 8-bit motherboard, please flash the 8-bit motherboard firmware.
If your machine comes with a 32-bit motherboard, please flash the 32-bit motherboard firmware.