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Refurbished: HP ProOne 400 G1 All-in-One LED 19.5" 1600 x 900 (HD+) Resolution - 4th Gen Intel Core i5-4570T 2.9 GHz 8GB DDR3 RAM 500 HDD DVD-RW Webcam Windows 10 Pro 64-Bit - Newegg.com
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HP ProOne 400 G3 20-inch Non-Touch All-in-One PC 20in 1TB/8GB/8GB 2.7GHz Windows 10 Pro 64 Intel HD Graphics 630 - Walmart.com
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Open Box: HP ProOne 400 G1 All-in-One Intel Core i5 4590T (2.0 GHz) 4 GB DDR3 500 GB HDD Windows 7 Professional 64-Bit (available through downgrade rights from Windows 8.1 Pro) - Newegg.com
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HP ProOne 400 G1 All in One Intel Core i3-4590 3.0 GHz, 8 GB Memory 500 GB Hard Drive Windows 10 Pro - Discount Computer Depot
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