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
DDR4 4GB PC 2400 CL17 Samsung, M378A5244CB0-CRC at Amazon.com
4GB (1X4GB) Memory for HP ProDesk 600 G3 Series MT/SFF DDR4-2400 Non-ECC UDIMM Desktop Memory (PARTS-QUICK Brand) at Amazon.com