The OPB704 IR Reflective Object Sensor is a focused reflect sensor that is used for the detection of changes in a surface. It will save you from ever falling off a cliff! Okay, maybe that's a bit dramatic. It will save your robot from ever falling down the stairs! That's better.
The Cerberus, it sounds really smart, and it really is! It provides a great solution for the age old problem of never having the right USB cable. This is a 3 in 1 USB cable that has a Mini-B, Micro-B and Standard-B on one side to a single USB-A male connector on the other.