New Auxiliary power supply board (r5B6) required for the revised Arduino shield board is finalized. It includes few minor changes as follows:

1. 4-pin "power" connector is replaced with 6-pin IDC connector for power (+5V) and signal lines (PWR_DIRECT, PWR_SSTART, FAN_PWM, FAN_SENSE)
2. Ethernet and USB connectors mounted on the reverse side that allows direct mounting on the new enclosure's rear panel (require 14 mm spacers).
3. Fan supply (+12V), PWM control and fan sense is added
4. Optionally Ethernet and USB could be guarded with surge protection circuits (IC3, IC4).
5. THT bridge rectifier (B1) is replaced with a SMD
6. Heatsink (KK1) is now SK 145/37,5