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PlayStation 4 - Wikipedia
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What is Full Specification of the PS4 Pro and DualShock 4 Controller (2016 Revisions)? | XTREME PS
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What are the different PS4 models? - Advice on Consoles & Gaming | Consoles.com
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PS4 and Xbox One 4K hardware revisions coming this year - rumour | VG247
The PS4 will have a 1TB hard drive version very soon | Engadget
PS4 Ships 3 Million Units, Xbox One and 360 Reach 1.4 Million, in the Last Quarter
PlayStation 4 lifespan reportedly extended, as PS5 supply issues continue | Eurogamer.net
How to identify which PS4 model you own - We Solve All
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PlayStation 4 sales top 50 million units - Polygon
New PS4 hardware revision cheaper, more efficient - Gameplanet New Zealand
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What are the different PS4 models? - Gaming Deals
PlayStation 4 Pro CUH-7200 review: the latest, quietest hardware revision | Eurogamer.net
Sony upgrades PS4 for 4k gaming and slimmer version - Movie TV Tech Geeks News
PS4 to PS5: All Games with Confirmed Free Upgrades | Push Square
