New Corsair have not used and been sitting around

The Corsair Vengeance 32GB DDR4 2666MHz PC4 SO-DIMM RAM is a high-quality memory module designed for Mac computers. With a total capacity of 32GB divided into 1 module, it offers fast performance at a bus speed of PC4-21300 (DDR4-2666). The SO-DIMM form factor ensures compatibility with a wide range of Mac models, while the Corsair brand guarantees reliability and quality. Upgrade your Mac's memory capacity with this sleek and efficient RAM module for improved speed and multitasking capabilities.