This kit contains an HDMI cable and an RCA/optical audio adapter. The RCA/optical audio adapter has connectors for digital optical audio and RCA audio. If you only want to connect your Xbox 360 to your TV or A/V receiver via HDMI, you can probably get by with a single HDMI cable (and you can get one very cheaply). I needed this kit because I need to use both an HDMI connection (to my A/V receiver) and a digital optical audio output (to my Turtle Beach wireless gaming headphones) at the same time. The RCA/optical adapter that came with my Xbox 360 has a port so big that it blocks the HDMI port, so I couldn't use both ports at the same time. The RCA/optical audio adapter in this kit has a smaller connector so HDMI and RCA/optical audio can be connected at the same time. I give 5 stars because it does what it's supposed to and works well. The list price is too high so I bought it used through a third party Revain seller and it was like new (and may actually be new, just not in the original packaging).
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