This is an SSD drive with a 480 GB storage capacity. This model has a 2.5" form factor, the most common for SSD drives.
From Amazon
SanDisk SSD PLUS 480 GB SATA III 2.5-Inch Internal Solid State Drive, SDSSDA-480G-G26 , Black
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SanDisk Plus 240GB SSD 2.5 Inch 7mm, SATA 3.0 (6Gb/s), 530MB/s R, 440MB/s W
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