This hard drive from Transcend has room for 2 TB of data. This model has a 2.5" form factor, which apart from this model is commonly used in SSD drives.
From OnBuy
Transcend Information 2 TB StoreJet M3 USB 3.0 Slim External Hard Drive, Military Green (TS2TSJ25M3G)
Clove Technology
Transcend StoreJet 25M3G 2TB
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