In a teardown of the Kinect, the sum of the parts are roughly $56. That doesn’t sound like much compared to the cost of the system, but there are packaging, R&D costs, software, among other things.

Microsoft Corp.’s Kinect motion-gaming add on for its Xbox 360 gaming platform carries a bill-of-materials (BOM) of roughly $56 and features chips made by PrimeSense Ltd., Marvell Technology Group Ltd., Texas Instruments Inc. and STMicroelectronics NV, according to a teardown analysis performed by UBM TechInsights.