The Sabrent Rocket 4 Plus 1TB is the objective winner of this comparison, securing more category wins across the evaluated specifications. Its most significant technical advantage is the inclusion of a DRAM cache, which represents a 100% improvement over the alternative. This feature provides a distinct architectural benefit for the drive, positioning it as the superior choice when prioritizing internal component specifications and hardware-level performance features over raw storage volume.

Choose the Sabrent Rocket 4 Plus 1TB if your primary requirement is the inclusion of a DRAM cache for your storage operations. Conversely, select the Western Digital WD Black SN770 2TB if your workflow demands higher storage space, as it offers a 100% advantage in total capacity. Your final decision should depend on whether you prioritize the hardware-level benefits of a dedicated cache or the practical utility of doubling your available drive storage.