HP RAM Memory - 4GB - DDR4 SDRAM PC Memory Z9H59AT at Amazon.com
4GB DDR4 Memory 2400 MHz SO-DIMM, 204 pin DIMM RAM Upgrade for MINIX NEO J50C-4 Serial Windows Mini PC, Sold by MINIX Technology Limited. at Amazon .com
Astra-Gear 8GB(1x8GB) 2666MHz DDR4 Unbuffered Non-ECC U-DIMM Upgrade for Desktop Memory Ram 1.2V CL19 260-Pin(AHD19S8G26S) at Amazon.com