The Crucial MX500 4TB is the objective winner of this comparison, securing more category wins across the evaluated specifications. Its most significant advantage is its storage capacity, which is 100% greater than that of the alternative. By offering double the space, this drive provides a substantial increase in total data volume for users who require extensive room for their files, media, or applications compared to the smaller capacity offered by the Western Digital WD Blue SA510 2TB.

Users who prioritize maximum storage space should choose the Crucial MX500 4TB to accommodate large libraries or extensive data sets. Conversely, the Western Digital WD Blue SA510 2TB is the better option for budget-conscious buyers, as it holds a 47% advantage in MSRP. Selecting between these two components depends entirely on whether your primary requirement is the doubling of available storage capacity or the lower cost associated with the smaller drive.