Keep your multi-core processor workstation running at peak performance with the HP 4GB (1 x 4GB) DDR4-2133 ECC RAM. Adding more registered RAM to your workstation lets you experience faster start-up times, run more programs at the same time, and easily toggle between several open programs. By offering Error Checking and Correcting technology, this RAM will help your workstation encounter fewer errors that can corrupt data sets and introduce system issues. This RAM is designed for a workstation that can utilize DDR4 2133 MHz performance.