![]() What this TBW issue suggests: The Rocket Q may have massive capacity, but it's less suited to use where you're constantly writing and rewriting the drive's contents, en masse, every day. That's a fair uptick, even though that is still very low compared proportionally to most TLC-based competitors. Samsung has noted that the new SATA-based 8TB SSD 870 QVO coming this August will add more than 1,000TBW to that rating, at 2,880TBW in its 8TB version. Perhaps this very low TBW rating will just be a trait of it being an early 8TB QLC drive. Write durability is not a known strength of QLC tech, but it provides a cheaper and easier way to get a lot of drive into just a little bit of space. This relatively low write durability is down to the quad-level-cell (QLC) memory used in the Rocket Q. For reference, if you scaled the recently released TeamGroup T-Force Cardea Zero Z440 up to that same 8TB at its current TBW rating, it could write 14,400TBW instead. Now this is technically a new high for 4-bit SSDs, but that is only because the capacity is so high and TBW ratings scale with capacity. But then you get a look at the terabytes written (TBW) endurance rating: 1,800TBW for the 8TB drive. Sabrent rates the 8TB version of the drive for a maximum sequential write speed of 3,300MBps (interestingly, 100MBps slower than the 4TB version, not usually the case), and 2,900MBps on sequential reads (again, a little slower than the 4TB). Those variations aside, those speeds are pretty standard stuff for a PCI Express 3.0-based NVMe drive these days.Īt such a big capacity and high price, the 8TB Rocket Q feels like a drive that should be compared more fairly to professional/enthusiast entries like the Samsung SSD 970 Pro, given the types of workloads you'd expect owners of 8TB SSDs would subject them to. But once the capacities jump to 4TB and 8TB, the 21 and 19 cents per gigabyte push a different pricing dynamic. At those two capacities, the Rocket Q is actually a reasonable per-gig deal. The 1TB and 2TB versions of the Rocket Q at their list prices are only 12 cents per gigabyte. Also, in a move that's the reverse of the usual, the Rocket Q gets substantially less expensive per gigabyte at the two lower capacities. The Sabrent Rocket Q's 19-cent-per-gigabyte cost at 8TB puts it right in the range of drives like the Seagate FireCuda 510, a premium-cost drive that gains you a higher write durability (TBW) rating on the back end. (Check out our SSD dejargonizer for more on some of these terms.) ![]() All capacities are M.2 Type-2280 (80mm-long) drives, and all rely on the PCI Express 3.0 bus. The Sabrent Rocket Q is a 96-layer QLC NVMe SSD that is launching in four different storage-volume sizes: 1TB, 2TB, 4TB, and the massive 8TB version. If you have no free PCIe slots, or a laptop, you're out of luck. ![]() (An example: the Asus Hyper M.2 X16 Card.) Of course, this is only an option for a desktop. Your only alternative to a drive like the Rocket Q, if you want to add 8TB of SSD storage, is to buy a full-size PCI Express M.2 expansion card (the kind that goes into a full-size PCIe slot, like a video card does) and mount, say, four 2TB or two 4TB NVMe drives on it. ![]() Sometimes, you simply need all the capacity you can get on a single PCI Express M.2 slot. The Rocket Q comes in several capacities, but the 8TB drive is the one worth talking about. Sure, you can get eight 1TB M.2 SSDs these days for a little over $100 each.but does your PC have eight M.2 slots? Rocket Q: When Only Eight Is Enough While the version we tested isn't the most cost-effective drive or the fastest in raw performance, its cavernous capacity in such a small, single-slot package makes it a head-turner for a select number of data-hoarding enthusiasts and content producers. A drive that size can store a nice chunk of the Library of Congress and still have room left over for the final season of Bones and your latest Call of Duty install. It's unique among consumer M.2 drives at this writing in offering an 8TB model. The Sabrent Rocket Q (starts at $119.98 $1,499.99 for the 8TB version tested) presents a new category unto itself: the mega-capacity PCI Express NVMe internal SSD. ![]()
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