“If USB C/ USB 3.2 gen 2 (10Gb/s) why is the maximum transfer speed listed as 540mb/s?”
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The USB 3.2 gen 2 interface is capable of 10 Gb (lower case "b") per second (that's 10 giga-"bits"). That translates to 1 GB (upper case "B") per second (1 giga-"byte"), under laboratory perfect conditions. With computers, there is always a bottleneck. There is always some part capable of some maximum speed, and that part is always throttled by some associated part that cannot reach that same speed. Such is the case with the Samsung T5. It's theoretical maximum read / write speed is 500 MB (mega-bytes) per second. But you will never get that speed. You will usually get in the neighborhood of 350 MB per second, when the drive is being written to (or from) an NVMe drive. At times, you might get a bit over 400 MB per second. For example, if you have multiple mechanical drives, all writing to the T5, simultaneously. That is when the T5 will exceed 400 MB per second (but not by much). If you want faster speeds, then get the Samsung T7. It is roughly twice as fast. But that is a dubious rating. Here's why: The T7 will do much faster speeds than the T5, but only for, perhaps, 100 GB of data being written without rest. After that, it slows down, dramatically. You see, the T7's internal NAND fabric (that stores the data) is not uniform. Samsung used super fast NAND fabric for initial bursts of high speed, and used far cheaper, and far slower, NAND fabric for the vast majority of the drive's storage fabric. For most users, you will never notice the slower part of the drive. Why? Most users do not hit the drive with over 100 GB of data without rest. And when the drive is idle (when you are not slamming it with data), the drive quietly transfers data off of its super fast NAND fabric to its much slower NAND fabric. Then, the next time you go to use the drive, all of the fast NAND fabric is available, and the drive runs super fast. But if you write hundreds of GBs to the drive, without rest (for example, if you use the drive as temp storage for mining Chia crypto currency), you will run out of the drive's fast NAND fabric, and the drive will slow to a crawl -- it will slow to USB 2.0 speed. Note that this only affects writing data to the drive. Reading data from the drive, no matter where within the drive that the data is stored, it will be very fast. If you want consistently fast write speeds to the drive, no matter how much you write to the drive, then get the T5. Samsung did not play games with the T5. It is uniformly fast, throughout the entire drive. But if your work involves chunks of data that do not exceed 100 GB at once, then the T7 will be much faster than the T5. If your work involves chunks of data that do exceed 100 GB of data, then you will probably be better off with the T5. Again, this applies only to the write speed, and only if you will be pounding away on the drive non-stop for hundreds of GB of data. If the T7 did not pull that slow-down crap, with large data writes, then it would be the ideal portable drive, and would flirt with USB 3.2 gen 2's speed limit. Two final points: 1) I quoted 100 GB of constant writes as the point where the T7 slows down. That is an approximation. Nearly all SSD manufacturers do this with consumer level SSD drives (such as the T7), and it is why you are not paying $hundreds$ more for the drives. There is no set percentage of the drive that is built for the fast part or the slow part. It varies by model, and by drive capacity. Usually the larger drives will have more of the fast NAND fabric. How much of the fast NAND fabric is present is hard to say. But 10% is probably in the ballpark. 2) If you see benchmark tests, keep in mind that those benchmark test never test the slower part of the drive, because those benchmarks do not hit the drive with enough non-stop data to reach the slower part of the drive. So you will see exactly what the manufacturer wants you to see -- just the first few percentage points of storage space, which runs the fastest. You would have to run a benchmark test that writes at least 250 GB of data, to really get a glimpse of how the "entire" drive performs. You do not find such tests in reviews, because they run for a long time, so people do not run them. Also, the people that run the benchmarks might not know all of the above. They might assume that the results for a 5 GB benchmark would have the same speed results as doing the test for 250 GB of data. But all of this is moot, if the amount of data that you will write never is in the 100+ GB range in a single shot. Cheers!
Sorry, there was a problem. Please try again later.The interface is capable of that spend, but the memory chips in the SSD can’t be written to or read from that fast. This is why some people put multiple SSD In case and use them as RAID to get faster performance.
Sorry, there was a problem. Please try again later.While the usb C cables are capable of those transfer speeds, the SSD read/write is a different spec, and can’t perform at that full potential. Also, there’s different read and write speeds whether you’re recording video to it, or just transferring files. Hope that helps!
Sorry, there was a problem. Please try again later.There is not a drive out there that exists that does 10GB a sec. 1000M/B is 1GB and your looking for something that does 10,000mbs a sec? Not a computer on earth is that fast. Believe me 1/2 a GB a second is PLENTY fast enough for these new consoles. You'll never need speeds of a 1000mbs on these new consoles. If it's for a computer then sure go with the T7 but even 1000mbs a sec is so fast that most PCs don't that speed. It's a great drive for anything you want it for.
Sorry, there was a problem. Please try again later.In addition to my previous answer, Samsung state that this is a USB 3.1 device, hence the transfer rate of 540MB/s.
Sorry, there was a problem. Please try again later.The thoretical transfer speed of USB 3.2 gen 2 is 10 Gigabits per second, From the earlier USB 3.0 640 MegaBytes per second, that translates to a theoretical transfer speed of 1280 MegaBytes per second for this USB specification. Obviously, Samsung is only using a USB 3.0 interface on this device with a USB C connector. NOTE: In your question, you are mixing bits and bytes. Bytes are 8 times the size of bits. Samsung's claim of 540 MegaBytes per second accounts for a certain amount of handshaking overhead between the connected devices and is quite realistic and attainable under the USB 3.0/3.1 specifications. I would expect a 1080 MegaByte per second throughput under true USB 3.2 gen 2. I have used MegaBytes to illustrate the abbreviation MB/s, I believe it is normally spelled Megabytes.
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