HP All-in-One - 20-c419in (Intel Pentium Quad Core/4GB RAM/1TB HDD 7200RPM/19.5'' (49.53 cm) LED/DVD-Writer/Windows 10) (Black) vs (Renewed) Lenovo Ideacenter 520 F0D500BUIN 21.5-inch All-in-One Desktop (7th Gen Core-7020U/4GB/1TB/Windows 10 Home/Integrated Graphics), Black