The MKIV master controller V2 is a successor of the first version. It features 5 ports for your peripherals, one of which can be used for flashing (in version V2A). A separate flashing cable is no longer needed. This version of the controller is compatible with all peripherals including MKIII ones, except for VRMax collective head, which was replaced with the VRMax pedestal which does its job much better.

• 1 x Arduino Leonardo
• 1 x FTDI232 USB-UART board
• 1 x 6x6x5mm tactile button
• 4 x TJ8P8C Ethernet sockets (12,5x15x17,6mm)
• 4 x M3x30mm screw
• 2 x M3x40mm screw
• 4 x M3x6mm screw
• 6 x M3 nuts
• A ribbon cable
  

STL’s / Sources

1. Snap off the Micro-USB socket and solder the USB-B one as shown on the picture below: