The WD My Passport SSD with USB 3.2 doesn’t look like its travel-enabling namesake, the My Passport Go, but it’s all ready to go places. It’s small (3.9x 2.2x 0.4 inches) and attractive, with its shiny ridged surface and choice of five snazzy colors (blue, gold, gray, red, and silver). Because 16.3TB is NOT 18TB whatever math WD and MS battle with in competing math's. Math should be math, and not subjective to the whims of their own deficient abilities in creating products that use it. My suggestion is to buy the next larger, or even greater than that drive, to get the true storage size you really need. If I'm looking to buy 18TB of drive storage I should receive 18TB of drive storage. I don't think that car manufactures could offer a car, you buy it, and then when you go to drive it home, it only had three wheels attached or one of the seats missing. Since hard drives are mechanical devices that use mature technology, you can get relatively large amounts of storage capacity for the money. But the same tech that makes hard drives a tantalizing value becomes their biggest liability when used on the go. If you drop the drive, you could damage the interior mechanism and make your data inaccessible. By contrast, if you jolt an SSD while you're reading or writing data, there is no risk that your files will become corrupted and unreadable.

Would I buy the 18TB drive again? Well only if I wanted 16.3TB of storage, then that would be a yes. We hooked up each external hard drive to a current-generation Dell XPS 17 laptop, using the best connection interface available to that drive, always in the same port, to minimize performance differentials.Generally, the higher a drive's capacity, the cheaper it will be per gigabyte. But that's not always true; sometimes the very highest-capacity drives come at a per-gigabyte price premium. The basement for budget external SSDs is currently about 7 cents per gigabyte, mostly from second- or third-tier vendors. Calculate your bottom-line price when comparing a host of drives.

The only case with hard drives where the USB standard matters much is if you connect a drive to an old-style, low-bandwidth USB 2.0 port, which is better reserved for items like keyboards and mice. (Also, if it's a portable drive, that USB 2.0 port may not supply sufficient power to run the drive in the first place, so the speed shortfall may be moot.) Any remotely recent computer will have some faster USB 3-class ports, though. That said, as a platter-based hard drive, it's best equipped to store a game library; you're better off loading the games you're currently playing from an SSD. If you conservatively figure an average game size of 100GB, the 4TB version tested here can hold about 40 titles, serving as the stylish main repository of your collection for years to come, and for a much more modest outlay than you'd spend on an SSD of similar capacity. Who It's For

Give your Xbox a serious storage boost with the best external SSDs and HDDs and plug-in expansion cards

The drive is a shade expensive, and the integrated carrying loop is too big to easily fit on a standard keychain.Otherwise, this is an excellent storage device that's ideal for heavy everyday use. External solid-state drives are, essentially, internal SSDs (the same kind that power laptops or live inside desktops) with an outer shell and some bridging electronics. As a result, external drives use one of two internal "bus types" that, in part, dictate their peak speed: Serial ATA (SATA), or PCI Express (PCIe). The latter is usually associated these days with Non-Volatile Memory Express (NVMe), a protocol that is optimized for the characteristics of SSDs and speeds up data transfers. In addition to their physical shape differences, USB ports on the computer side will variously support USB 3.0, 3.1, or 3.2, depending on the age of the computer and how up to date its marketing materials are. You don't have to worry about the differences among these three USB specs when looking at ordinary hard drives, though. All are inter-compatible, and you won't see a speed bump from one versus the other in the hard drive world. The drive platters' own speed is the limiter, not the flavor of USB 3. Yes: Again, hard drives are slower because they have to physically rotate disks and move a reader arm to access your data. Just how much faster is it to read data from flash cells than from particular points on spinning platters? Typical throughput for consumer hard drives is in the range of 100MBps to 200MBps, while SSDs that support Thunderbolt 3 or 4, or USB 3.2 Gen 2x2, can have read and write speeds pushing 2,000MBps or even higher. (One factor in hard drive speed is spin rate—among external drives, 5,400rpm units are more common and more affordable than 7,200rpm.) Also, just because you put a PCIe NVMe drive in an enclosure doesn't mean you should magically expect it to go any faster than a standard external SSD. Any drive placed in an enclosure is still subject to the peak USB speed supported by the enclosure's own electronics and controller, and by the USB protocol supported by the port you plug it into.