As the cost of flash storage continues to drop, buyers are demanding larger SSD capacities for their money. With its new Z410 line, SanDisk is adding a 480GB capacity tier to its most affordable series of drives. On top of that, the new lineup offers a modest performance boost over the company's current Z400s budget SSDs.
The Z410 SSDs come in three capacities: 120GB, 240GB, and the aforementioned 480GB version. They're all SATA 6Gbps drives in a 2.5" form factor. With claimed sequential read speeds up to 535 MB/s, these drives offer similar performance to the Z400s drives. Sequential write speeds, though, improved from up to 342 MB/s in the Z400s line to up to 445 MB/s in the Z410 line. Both products have very similar random performance. The Z410 SSDs offer random reads up to 37K IOPS and random writes up to 68K IOPS. SanDisk also says that the Z410 drives include an SLC cache that purportedly improves burst write performance during typical use.
With the introduction of the Z410 lineup, SanDisk now has three lines of solid-state drives on the market using TLC flash. The X400 line offers the highest performance of the bunch, at least going by SanDisk's numbers. Distinguishing the Z400s and Z410 lines isn't quite so simple. The largest capacity in the Z400s line is 256GB, but you can get 480GB with the Z410 line. Some Z400s drives come in the M.2 form factor and offer a five-year warranty, though, while the Z410 drives are all 2.5" drives covered by a three-year warranty.
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