A-Tech 8GB Replacement for HP 797258-581 - DDR4 2133MHz PC4-17000 ECC Unbuffered UDIMM 2rx8 1.2v - Single Server Memory Ram Stick (797258-581-ATC) at Amazon.com
A-Tech 8GB RAM Replacement for HP 752368-081 | DDR4 2133MHz PC4-17000 1Rx4 1.2V ECC RDIMM Registered 288-Pin DIMM Memory Module at Amazon.com
Crucial 16GB Kit (8GBx2) DDR4 2133 MT/s (PC4-17000) SR x4 RDIMM 288-Pin Server Memory - CT2K8G4RFS4213 at Amazon.com
Crucial 8GB (1 x 8GB) PC4-17000 (DDR4-2133) UDIMM Memory Module (CT8G4DFS8213) for sale online | eBay
A-Tech 8GB Module for HP 15-bs091ms Compatible DDR4 2133MHz PC4-17000 Non-ECC SODIMM 1.2V - Single Laptop & Notebook Memory RAM Stick (ATMS397715A34065X1) at Amazon.com
HP 8GB DDR4 2133Mhz 1.2V SODIMM Notebook Memory [PN: 820570-001] at Amazon .com