An LED on the front lights up when the hard drive is plugged in, and there's a single USB port on one side. The Backup Plus has a traditional black casing that's half metal and half plastic, with the metal plate located on the front of the drive. In terms of usability, those dimensions mean it's slim and easy to slip into a bag or a backpack.

807 inches thick (20.5mm), and it weighs 0.54 pounds. It measures in at 4.5 inches in length, 3.1 inches in width, it's. Design wise, the 4TB Backup Plus looks like any standard 2.5-inch portable hard drive. Seagate's been selling its Backup Plus line for years. It's also got more storage than the Backup Plus Slim, which caps out at 2TB, allowing Seagate's newest offering to fill a void between the two existing products (Fast and Slim) in the Backup Plus family. Seagate's new Backup Plus offers the same 4TB of storage that the Backup Plus Fast offers, but it's less expensive and it is a single 4TB hard drive instead of two external drives in a RAID 0 configuration. Seagate invited us to test out its newest hard drive to test the Backup Plus hard drive and the new Lyve app and service it ships with. Seagate also announced a new high capacity Backup Plus Portable hard drive, with 4TB of storage and a 20.5mm form factor, priced at $240.

Seagate has long sold a line of Backup Plus external hard drives that offer large amounts of storage space at a reasonable price, and in June, the company announced two new features added to all hard drives in the Backup Plus line: 200GB of Microsoft OneDrive cloud storage and the Lyve photo and video management app for automatically backing up photos.

4tb seagate backup plus slim