Improved design with power channels With this adapter, no wires need to be cut!! Simply connect this between your board and your cable, attach the 3 bltouch wires and upgrade your firmware. Compatible with: 3 3 Pro 5 -10 Mini -10 Incompatible with: ANet A8 2 4 -8 you connect BLTouch's 3 pins per the labeling on the board. You must have a Bootloader flashed to your 3 Board in order to use this. Support for that is not provided. Attention: The pin 27 board makes installing a bltouch or filament sensor fast and easy. Normally you would need to cut the ribbon cable and solder into the pin 27 but with the board its plug and play.(after firmware update) Make sure to check your wire configuration on your bltouch or filament sensor. The new bltouch sensors should plug right into the board without depining the connector. Left to right: Brown-Ground, Red-5v, Yellow/Orange-Signal Disconnect lcd ribbon ext1 on the control board Connect Ext1 to the pin 27 board Connect bltouch to the 3 pins on the pin 27 board. Left to right: Brown-Ground, Red-5v, Yellow-Signal Connect the pin27 to the main board. Make sure to align the header pins from the pin 27 to the main board. Colour:As shown Material:PC+Metal Package Contents: 2 x pin 27 board adapter board Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.