Amazon.com: Orange Pi R1 Plus 1GB DDR4 Rockchip RK3328 Quad core Cortex-A53 Dual 1000M Ethernet Ports, Run Android 9, Ubuntu, Debian, OpenWRT (1GB SBC + Expansion Board + Al Heat Sink) : Electronics
4AllDeals 1GB Memory RAM Upgrade for The Dell OptiPlex GX620 Desktop, Mini Tower, Small Form Factor and Ultra Small Form Factor (DDR2-400, PC2-3200) at Amazon.com
DATARAM 16GB DDR4 PC4-2400 SO DIMM Memory RAM Compatible with HP PRODESK 600 G3 (Mini) at Amazon.com
Hynix HMA84GR7MFR4N-UH 32GB DDR4-2400 ECC REG DIMM Server Memory at Amazon .com