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HP ProOne 400 G2 (P5U57UT#ABA) All-in-One Computer - Intel Core i3 6100 (3.70 GHz) 4 GB DDR4 500 GB HDD Intel HD Graphics 530 20" Windows 7 Professional 64-bit with Windows 10 Pro License - Newegg.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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