diff --git a/hash/bdesignm_design_cart.xml b/hash/bdesignm_design_cart.xml
index 3b70b5c446b..7d41b19eab6 100644
--- a/hash/bdesignm_design_cart.xml
+++ b/hash/bdesignm_design_cart.xml
@@ -10,7 +10,52 @@
 	M.03 - Super Street Fighter 2
 	M.04 - Rockman X3 Buster Battle
 	Weekly Shonen Jump Special
-	
+
+	Cart info:
+
+	M-Cartridge (DESIGN):
+
+	        FRONT                        BACK
+ 	+------------------+        +------------------+
+ 	| +---+   +-+      |        |                  |
+ 	| |1mb|   | |HC74  |        |                  |
+ 	| |ROM|   +-+      |        |                  |
+ 	| +---+            |        |                  |
+ 	|__________________|        |                  |
+ 	||||||||||||||||||||        ||||||||||||||||||||
+	1+------------------+18    19+------------------+36
+
+	PINOUT:
+
+	 1|NC         19|NC
+	 2|GND        20|NC
+	 3|GND        21|A2
+	 4|VCC        22|A3
+	 5|CE         23|A4
+	 6|NC         24|A5
+	 7|OE         25|A6
+	 8|D0         26|A7
+	 9|D1         27|A8
+	10|D2         28|A9
+	11|D3         29|A10
+	12|D4         30|A11
+	13|D5         31|A12
+	14|D6         32|A13
+	15|D7         33|A14
+	16|A0         34|Pin3 & Pin11 of HC74 -> Clock Signal
+	17|A1         35|VCC
+	18|NC         36|GND
+
+	HC74:
+	     +--------+
+	 VCC-|        |-VCC
+	  D0-|        |-VCC
+	 CLK-|        |-D1
+	 VCC-|        |-CLK
+	 A15-|        |-VCC
+	  NC-|        |-A16
+	 GND-|        |-NC
+	     +--------+
 -->
 
 <softwarelist name="bdesignm_design_cart" description="Bandai Design Master 'Design / Media' cartridges">