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I've got a Seagate 4 TB drive, that I'm wanting to use in a docking station for backups, but the drive is only showing as 2 TB. <br />
I'm running 64 bit WIndows 7 Ultimate, it's a Seagate ST 4000DM000 drive &amp;&nbsp;a Thermaltake &nbsp;BlacX docking station.
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I've got a Seagate 4 TB drive, that I'm wanting to use in a docking station for backups, but the drive is only showing as 2 TB. 
I'm running 64 bit WIndows 7 Ultimate, it's a Seagate ST 4000DM000 drive & a Thermaltake  BlacX docking station.

4 TB drive in docking station only shows as 2 TB...

Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.