diff --git a/RS485_Relay_V2R2.kicad_pcb b/RS485_Relay_V2R2.kicad_pcb
index ae2309f..5a0c045 100644
--- a/RS485_Relay_V2R2.kicad_pcb
+++ b/RS485_Relay_V2R2.kicad_pcb
@@ -14992,7 +14992,7 @@
 		(descr "LED SMD 0805 (2012 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: https://docs.google.com/spreadsheets/d/1BsfQQcO9C6DZCsRaXUlFlo91Tg2WpOkGARC1WS5S8t0/edit?usp=sharing), generated with kicad-footprint-generator")
 		(tags "LED")
 		(property "Reference" "HL6"
-			(at -2.4 0.4 180)
+			(at 1 1.8 -90)
 			(layer "F.SilkS")
 			(uuid "bcfdb08b-3ce9-4e2d-af4e-1a3fd34c1f62")
 			(effects
@@ -29863,6 +29863,18 @@
 			(justify left bottom mirror)
 		)
 	)
+	(gr_text "S/N:"
+		(at 82.4 74.4 0)
+		(layer "B.SilkS")
+		(uuid "b43b87d5-010e-496e-a5c8-5c21864ef5b1")
+		(effects
+			(font
+				(size 3 3)
+				(thickness 0.375)
+			)
+			(justify left bottom mirror)
+		)
+	)
 	(gr_text "PWR"
 		(at 48.6 69.9 45)
 		(layer "F.SilkS")
diff --git a/gerbers/RS485_Relay_V2R2_gerbers.7z b/gerbers/RS485_Relay_V2R2_gerbers.7z
index 898693e..783a24a 100644
Binary files a/gerbers/RS485_Relay_V2R2_gerbers.7z and b/gerbers/RS485_Relay_V2R2_gerbers.7z differ