Not much has changed since 2016 and this new edition of the Seagate Backup Plus Portable drive is a good product. Writing speed drops significantly as the hard drive becomes full, especially on long sequential writesĬonclusion: A Great Value for Cold Storage and Backup Application.Good build quality with aluminum casing.Decent reading speed performance (130 MB/s maximum).Excellent value: $100 for a 5TB portable hard drive.When the hard drive is not full, the reading and writing operations can reach up to 130 MB/s. Past 70% or 80%, the writing speed can decrease below 30 MB/s. But this technology comes with a catch: while the reading speed is not impacted (up to 130 MB/s), the writing speed tends to slow down significantly as the disk becomes full. This overlapping-lane architecture permit to cram more data per platter. Without being too technical, the SMR technology consist of writing on three tracks in parallel. The Shingled Magnetic Recording (SMR) is a recording technology designed to increase the storage density. The hard drive is nicely designed and comes in several colors.
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