Amazon.com: Acer Aspire XC Compact High Performance Desktop - Intel Celeron Dual-Core N3050 Up to 2.16GHz, 4GB DDR3, 500GB HDD, DVD±RW, HDMI, USB 3.0, Windows 10 Home (Renewed) : Electronics
OFFTEK 8GB Replacement Memory RAM Upgrade for Acer Aspire XC-705-UR53 (DDR3-12800 - Non-ECC) Desktop Memory at Amazon.com
CMS 16GB (2X8GB) DDR3 12800 1600MHz Non ECC DIMM Memory Ram Upgrade Compatible with Acer® Aspire XC AXC-605-UR1E AXC-705-UR55, AXC710-xxx - A63 at Amazon.com
OFFTEK 8GB Replacement Memory RAM Upgrade for Acer Aspire XC-705-H-WLP (DDR3-12800) Desktop Memory at Amazon.com
parts-quick 8GB DDR3 Memory for Acer Aspire X Series XC-705-xxx PC3L-12800 Desktop DIMM Compatible RAM at Amazon.com