Designed with your specific system in mind, Kingston system-specific memory makes it easy to select exactly what you need, based on your OEM system brand & model. Kingston engineers use only the highest quality components on the market to ensure maximum performance & legendary Kingston reliability. All Kingston system-specific memory is guaranteed to be compatible with the system for which it was designed Â- which takes the hassle out of selecting memory for your notebook or desktop. For Dell Power Edge M620, R420, R520, R720, T620; Precision Fixed Workstation R5500, T3600