The Crucial RAM is the perfect upgrade for building the new system that you have in mind. It has a great reputation for reliability and consistency. It is available in several capacities, from 4GB to 64GB, allowing you to upgrade that matches your computer needs.
It's Crucial Technology, so your memory will be engineered for stability and speed and tested to make sure it lives up to what Crucial expects of their products. It comes with the CL22 CAS latency at 1.2V voltage. The DDR4 memory module is compatible with most motherboards as well.