SK Hynix 4GB DDR4 1RX8 PC4-2666V RAM Memory HMA851S6JJR6N-VK SODIMM

Specifications: DDR4 2666MHz (PC4-21300), 4GB capacity, 288-pin UDIMM design. 1x SK Hynix DDR4 4GB 2666MHz RAM module.

eBay