Crucial 16GB Single DDR4 2666 MT/s (PC4-21300) DR X8 SODIMM 260-Pin Memory - CT16G4SFD8266 at Amazon.com
OWC 32GB PC21300 DDR4 2666MHz SO-DIMM Memory Compatible with Mac Mini 2018, iMac 2019 and up, Dell, HP, Lenovo, ASUS and Compatible PCs (OWC2666DDR4S32G) at Amazon.com
Amazon.com: Crucial 16GB Kit (8GBx2) DDR4 2400 MT/s (PC4-19200) SR x8 SODIMM 260-Pin for Mac - CT2K8G4S24AM : Everything Else
Adamanta 16GB (1x16GB) DDR4 2400Mhz (or 2133MHz or 2666MHz or 2933MHz or 3200MHz) PC4-19200 SODIMM 2Rx8 CL17 1.2v Notebook Laptop RAM Memory at Amazon.com
Kingston 8GB DDR4 2666MHZ SODIMM at Amazon.com
Patriot Signature Line DDR4 16GB 2666MHz CL19 SODIMM Single at Amazon.com
A-Tech 16GB (2x8GB) RAM for ASUS PRO P2430UJ | DDR4 2666MHz PC4-21300 Non ECC SO-DIMM 1.2V - Laptop & Notebook Memory Upgrade Kit at Amazon.com
TEAMGROUP Elite DDR4 16GB Single 2666MHz PC4-21300 CL19 SODIMM 260-Pin Laptop Memory Module Ram - TED416G2666C19-S01 at Amazon.com
Crucial 16GB Kit (8GBx2) DDR4 2666 MT/s (PC4-21300) SR x8 SODIMM 260-Pin Memory - CT2K8G4SFS8266 at Amazon.com
v-Color 32GB (2 x 16GB) ECC SO-DIMM DDR4 2666MHz (PC4-21300) for NAS Micro Server/Workstation/Compatible with Synology 21 Series 2Rx8 CL19 1.2V (TES416G26D819K-VKC) at Amazon.com
Sam Original 16GB (1x16GB) DDR4 2666MHz PC4-21300 SODIMM 2Rx8 CL19 1.2v 260-PIN Laptop Notebook Memory Module RAM Upgrade M471A2K43CB1-CTD Adamanta at Amazon.com
TEAMGROUP Elite DDR4 16GB Kit (2 x 8GB) 2666MHz PC4-21300 CL19 Unbuffered Non-ECC 1.2V SODIMM 260-Pin Laptop Notebook PC Computer Memory Module Ram Upgrade - TED416G2666C19DC-S01 at Amazon.com
Timetec 16GB KIT(2x8GB) DDR4 2666MHz (DDR4-2666) PC4-21300 (PC4-2666V) Non-ECC Unbuffered 1.2V CL19 1Rx8 Single Rank 260 Pin SODIMM Laptop Notebook PC Computer Memory RAM Module Upgrade at Amazon.com
SK HYNIX 16GB 2RX8 DDR4 SO-DIMM PC4-21300 2666MHZ Memory Module HMA82GS6JJR8N-VK at Amazon.com
DDR4 RAM】 Gigastone Laptop RAM 8GB DDR4 8GB DDR4-2666MHz PC4-21300 CL19 1.2V 260 Pin Unbuffered Non ECC SODIMM for Notebook Laptop Memory Module (Laptop ONLY) at Amazon.com