diff --git a/5x5x9/readme.md b/5x5x9/readme.md
index 728c73d..caec82c 100644
--- a/5x5x9/readme.md
+++ b/5x5x9/readme.md
@@ -4,6 +4,25 @@ http://www.40percent.club/2018/06/5x5x9.html
 
 [How to order PCBs from gerber files](http://www.40percent.club/2017/03/ordering-pcb.html)
 
+Switch parts:
+
+4 pin header https://lcsc.com/product-detail/Male-Header_2-54-1-4PHeader-tray_C91552.html
+
+    MFR P/N: 2.54-1*4PHeader
+    LCSC Part #: C91552 
+	
+BOOT1 slide switch https://lcsc.com/product-detail/Toggle-Switches_9mm-3-5mm_C92658.html
+
+    Mfr.Part #: K3-1280S-F1
+	LCSC Part #: C92658 
+
+RESET/BUT1 switch https://lcsc.com/product-detail/Tactile-Switches_ALPS_SKSCLBE010_3-3-5-1-1-Side-press-1-6N_C115361.html
+
+    Mfr.Part #: SKSCLBE010 
+	LCSC Part #: C115361 
+
+
+
 EasyEDA ordering info:
 
 PCB