diff --git a/Blocks.md b/Blocks.md
index 56322f6..f4ad96d 100644
--- a/Blocks.md
+++ b/Blocks.md
@@ -97,6 +97,14 @@ Power Distributor
 
 Distributes energy between different networks. This can be useful for powering multiple sub-networks that should not connect to each other. For example, you'll usually want to try and keep different computers in different networks - unless you have a startup script on each computer that manually assigns the primary components. Otherwise you'll frequently end up with the computers binding the wrong screen and/or keyboard on startup, for example, or even multiple computer binding to the same screen.
 
+Redstone I/O
+------------
+![Redstone I/O](http://i.imgur.com/CiNEBNM.png)
+
+Allows reading and emitting redstone signals around the block. Can be controlled by any computer the block is connected to. This is basically like an external redstone card.
+- This also supports RedLogic wires, if present, including colored and bundled wires.
+- This also supports MineFactory Reloaded cables, if present.
+
 Robot
 -----
 ![Robot](http://i.imgur.com/fHWkdgb.png)