<Li> S / PDIF </Li> <Li> RCA - stereo audio </Li> <P> At launch, the Xbox 360 was available in two configurations: the "Xbox 360" package (unofficially known as the 20 GB Pro or Premium), priced at US $399 or GB £ 279.99, and the "Xbox 360 Core", priced at US $299 and GB £ 209.99 . The original shipment of the Xbox 360 version included a cut - down version of the Media Remote as a promotion . The Elite package was launched later at US $479 . The "Xbox 360 Core" was replaced by the "Xbox 360 Arcade" in October 2007 and a 60 GB version of the Xbox 360 Pro was released on August 1, 2008 . The Pro package was discontinued and marked down to US $249 on August 28, 2009 to be sold until stock ran out, while the Elite was also marked down in price to US $299 . </P> <P> Two major hardware revisions of the Xbox 360 have succeeded the original models; the Xbox 360 S (also referred to as the "Slim") replaced the original "Elite" and "Arcade" models in 2010 . The S model carries a smaller, streamlined appearance with an angular case, and utilizes a redesigned motherboard designed to alleviate the hardware and overheating issues experienced by prior models . It also includes a proprietary port for use with the Kinect sensor . The Xbox 360 E, a further streamlined variation of the 360 S with a two - tone rectangular case inspired by Xbox One, was released in 2013 . In addition to its revised aesthetics, the Xbox 360 E also has one fewer USB port, no AV connector (and thus is HDMI - only), and no longer supports S / PDIF . </P>

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