What is the definition of a 2.5 inch hard disk drive? - Quora
USB 3.0 to IDE/SATA Converter, EEEkit Hard Drive Adapter Fit for Universal 2.5"/3.5" SATA HDD/SSD & IDE HDD Drives, Support 6TB - Walmart.com
500GB Toshiba 2.5-inch SATA laptop hard drive (5400rpm, 8MB cache) MQ01ABD050 - Walmart.com
Amazon.com: Seagate BarraCuda 5TB Internal Hard Drive HDD – 2.5 Inch SATA 6Gb/s 5400 RPM 128MB Cache for Computer Desktop PC (ST5000LM000) : Electronics