External Hard Drive LaCie 3.5\" d2 Professional 4TB:If you need to store more data, you will need the LaCie 3.5 d2 Professional 4TB external hard disk.. It presents a capacity that stores up to 4000 GB. Its 3.5 format is designed specifically for users who place the disk on a computer and do not plan to travel with it frequently. They are most often applied in offices and require additional power. A big advantage of the HDD is the better price-capacity ratio. It is necessary to mention, however, that the drive is more prone to bumps and shocks. It is therefore ideal for the office and households where it wont be manipulated too much. LaCie 3.5 d2 Professional 4TB External Hard Drive Key Features Type: HDD LaCie 3.5 d2 Professional 4TB requires an additional power source Disk interface: USB 3.2 Gen 1 (USB 3.0) Package includes Cable External disk capacity: 4000 GB Disk weighs 1400 g LaCie 3.5 d2 Professional 4TB Interface and Speed For connection to a PC and data transfer, the LaCie 3.5 d2 Professional 4TB disk uses the USB 3.2 Gen 1 (USB 3.0) interface. Thanks to this, you can take advantage of the universal double-sided connector. In addition to the disk, the packaging includes Cable. LaCie 3.5 d2 Professional 4TB Speed and Interface For data transfer, the LaCie 3.5 d2 Professional 4TB disc uses the USB 3,2 Gen 1 (USB 3,0) interface. You can thus take advantage of the universal, double-sided connector. Besides the disc, the package includes Cable.