How do NVMe solid-state drive and internal hard-drive prices compare when package capacities are standardized to one terabyte? This fixed research snapshot contains 121,987 unaggregated, quality-filtered retail price observations across 2 storage categories, 12 U.S. ZIP markets, and 29 consecutive dates from July 21 through August 18, 2026. The analysis-ready CSV preserves product titles, dates… See the full description on the dataset page: https://huggingface.co/datasets/costinflation/122k-prices-ssd-vs-hdd-2026.