diff --git a/Hellen-Hyundai-PB.md b/Hellen-Hyundai-PB.md
index e43ac9be..488e882c 100644
--- a/Hellen-Hyundai-PB.md
+++ b/Hellen-Hyundai-PB.md
@@ -2,10 +2,16 @@
 
 [Hyundai PB Vehicle pinout](https://rusefi.com/docs/pinouts/hellen/hellen-hyundai-pb-mt/)
 
-[rusEFI superseal adapter side pinout](https://rusefi.com/docs/pinouts/Hyundai-Kia-PB-platform-adapter )
+[rusEFI superseal PB adapter side pinout](https://rusefi.com/docs/pinouts/Hyundai-Kia-PB-platform-adapter )
 
-[Schematics 0.1](https://github.com/rusefi/rusefi-hardware/blob/main/breakout-boards/Breakout_154_kia_pb/hellen-hyundai-pb-154-adapter-0.1.pdf)
+[GDI4 box pinout](https://rusefi.com/docs/pinouts/GDI4)
+
+[4chan pinout](https://rusefi.com/docs/pinouts/hellen/alphax-4chan/)
+
+[PB adapter Schematics rev B](https://github.com/rusefi/rusefi-hardware/blob/main/breakout-boards/Breakout_154_kia_pb/hellen-hyundai-pb-154-adapter-b-schematic.pdf)
+
+[PB adapter Schematics 0.1](https://github.com/rusefi/rusefi-hardware/blob/main/breakout-boards/Breakout_154_kia_pb/hellen-hyundai-pb-154-adapter-0.1.pdf)
 
 [some photos](https://github.com/rusefi/rusefi-hardware/tree/main/breakout-boards/Breakout_154_kia_pb/photos)
 
-[GDI4 box pinout](https://rusefi.com/docs/pinouts/GDI4)
+