Crucial Memory Bundle with 16GB (2x8GB) DDR4 PC4-21300 2666MHz (CT2K8G4SFS8266) Compatible with Aspire 5 Slim Laptop A515-43-R19L, A515-43-R5RE, A515-43-R6DE at Amazon.com
Shuttle XPC slim DH670 Barebone System - Slim PC - Socket LGA-1700 - 1 x Processor Support - Intel H670 Chip - 64 GB DDR4 SDRAM DDR4-3200/PC4-25600 Maximum RAM Support - 2 Total Memory Slots - Serial - Newegg.com