TheShield's speed in Crystal DiskMark landed within the same narrow range as the vast majority of USB 3.2 Gen 2 drives, with only the SanDisk Extreme Portable SSD V2 slightly exceeding its read SanDiskUltra 128GB Dual Drive. While many of the flash drives on the market are designed for USB 2 or USB 3, the SanDisk Ultra 128GB Dual Drive is all about USB-C. And if you have a USB-C drive on your computer, this is a fine choice. The flash drive has a rugged finish to keep your data safe even if you drop it on a hard surface. TheExtreme Pro Portable (Credit: Western Digital) To enable the 2000 MB/s transfer rate on the Extreme Pro, the drive has been fitted with a USB 3.2 Gen 2x2 port. The higher transfer speed on the Im just curious as to what the difference is between flash drives of the same type with very similar model numbers. For example, I'm looking at getting a 64GB USB 2.0 Cruzer Glide flash drive. Is there a functional difference between all models that meet those specifications? I ask because of the change in the third and final grouping of alphanumeric characters in the model numbers TheSanDisk Ultra 3D is identical to the Blue 3D, but you may find it costs a little more. Shop for both, but choose the lower price. The Ultra 3D delivers comparable performance to the 850 EVO cNNS.

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