This is an SSD drive with a 480 GB storage capacity. The form factor is 2.5" the most common for SSD drives.
From BuyKingston
Fujitsu S26361-F5776-L480 internal solid state drive 2.5" 480 GB Serial ATA III
Senetic
SSD SATA 6G 480GB Mixed-Use 2.5' H-P EP
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