(Usually it works the opposite way, with higher capacities offering higher rated speeds within a given SSD family, thanks to parallelism of data transfers across more NAND chips, among other reasons.) The drive is rated for a massive terabytes-written (TBW) endurance rating of 1,800TBW in the 1TB variant (a figure that doubles to 3,600TBW in the 2TB version).
The latter figure, quite unconventionally, is rated faster-4,400MBps-on the lower-capacity 1TB version of the drive. TeamGroup rates the 2TB variant of the drive for peaks of 5,000MBps on sequential reads and 4,000MBps on writes. (Check out our SSD dejargonizer if you need to untangle that trove of esoteric terminology.) This Type-2280 (80mm-long) drive comes in just two storage-volume sizes: the 1TB version on the bench here, and a bigger 2TB at exactly double the list price. The $249 TeamGroup T-Force Cardea Zero Z440 is a PCIe 4.0 M.2 NVMe SSD, based on a second-generation, 96-layer 3D TLC NAND manufacturing process. (Warning: That link will lead you down a rabbit hole.) From Zero to Hero It's also the best SSD we've tested named after an obscure Roman goddess. But as a sample of what's waiting on the PCIe 4.0 horizon, the Cardea Zero Z440 is an exciting peek into the future. The drive didn't post scores far enough away from recent PCIe 3.0 all-stars to justify (for most folks) an all-out system upgrade by itself if you're still on the older spec. The drive achieves fine marks for both its tested performance and rated durability, while ditching cumbersome cooling solutions seen in previous TeamGroup efforts like the T-Force Cardea II. The T-Force Cardea Zero Z440 ($249 for the 1TB version tested here) is memory maker TeamGroup's first dance with the PCI Express (PCIe) 4.0 specification of internal M.2 SSDs, and if we had to classify it, it's a dizzying tango.
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