3813450 480GB is an SSD type hard drive which can fit 480 GB of data. This model has a 2.5" form factor.
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Intenso 480 GB 2.5-Inch Internal Solid State Drive, Black
Conrad Electronic
Intenso High Performance 480 GB 2.5 (6.35 cm) internal SSD SATA 6 Gbps Retail 3813450
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