iPad Air 4 (4th Gen, 10.9") 256GB Space Gray (Wifi)
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Apple Says Fourth-Generation iPad Released in 2012 is Now Obsolete - MacRumors
Used Apple iPad 4 (4th Gen) A1458 64GB Black WiFi Only Retina Display - Grade A (Very Good Condition) - Walmart.com
Differences Between iPad 4 Models (iPad 4th Gen): EveryiPad.com
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Apple iPad 4th Gen. 64GB, Wi-Fi, 9.7in - White for sale online | eBay
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