expired Samsung Evo Plus 256GB MicroSD Card $64 Delivered @ Iot_hub eBay

240
PUPGRADE

Looks like the cheapest ever for this micro SD card. No ebay plus required.

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Comments

  • +1 vote

    How can you tell if they are genuine?

    • +2 votes

      I've been buying my Micro SD cards from this seller. I haven't bought the 256GB version specifically, but the 64GB and 128GB cards I receive from them are genuine (and verified with H2testw).

      • -4 votes

        H2testw cannot verify a 256GB card as it only writes and checks max 1GB files at a time. Even a fake 2gb card will easily pass a h2testw "test" if its mostly empty. This tool worked 11 years ago when it was last updated and SD cards were tiny, but not today. It blows my mind that so many people and blogs blindly recommend this tool without having a clue that it doesn't even work.

        • +4 votes

          H2testw cannot verify a 256GB card as it only writes and checks max 1GB files at a time.
          Even a fake 2gb card will easily pass a h2testw "test" if its mostly empty.

          I'm going to need a credible source on those claims.

          H2testw writes in blocks of 1GB files and then reads them back to verify them. If one of those files isn't complete, or it wasn't able to write enough of those 1GB files as the card was designed (for example, 119 files on a 128GB card), then the card is deemed a fake.

          • +1 vote

            @Goldfire: exactly - this way you can actually tell if your 128gb card is a fake 2gb card or a fake 64gb card.

            worked the same way back when if your 8gb card was a fake 1gb card or 4gb card

          • +1 vote

            @Goldfire: Five minutes of googling:

            https://www.raymond.cc/blog/test-and-detect-fake-or-counterf...
            https://forums.hardwarezone.com.sg/hardware-clinic-2/h2testw...
            https://www.geckoandfly.com/22803/detect-fake-usb-flash-driv...

            -> H2testw seems to be slow, and maybe didn't work for one particular 512GB stick, but it otherwise seems fine.
            -> it definitely works for devices >1GB in size (e.g. https://forums.tomshardware.com/threads/tested-128gb-sdxc-wi...)
            -> it blows my mind…
            -> looks like an apology to Goldfire is in order

            • -1 vote

              @limafoxtrot:

              here's 1 link where it didn't work, and 2 generic blog lists indicating nothing at all

              time for an apology herh herh herh

              my 2 minute googling has made me an expert, herh herh

              It's possible a fake usb is really lazily done so that random 1GB block-addressed writes will expose it as a fake, but they're usually not that bad. They started faking them better about a decade ago. Which was, coincidentally, not long after h2test2 was last updated.

              •  

                @umexcuseme:

                here's 1 link where it didn't work, and 2 generic blog lists indicating nothing at all

                I don't see the link where it didn't work, I see two links that mention the device they tested it on failed the test.
                The two generic blog lists other software that will also test, but even they mention that H2testw is more thorough - perhaps you failed to read it properly?

                time for an apology herh herh herh

                Time to grow up, to be honest.

                my 2 minute googling has made me an expert, herh herh

                It was actually five minutes.

                I'd like to say that I'm still waiting on a credible source of information to backup your previous claims, but judging by your "herh herh herh" as a response and no actual substance to your reply, I believe I'd only be wasting my time waiting.

                So, I'm out on this one.

      •  

        Are the write speed and read speed close to 100MB/s? I just received my Samsung evo plus 256gb micro sd card from a seller on eBay and the write speed and read speed are below 20MB/s… It's likely to be a counterfeit. I'll try to get refund. I just wonder if this seller is reliable or not. I absolutely need to get one instead.

        •  

          Here's a quick write 10GB test I just did with a UHS-II card reader on their 128GB card

          Here's the same file as a read to the local NVMe

          If you're getting ~20MBps, then I'd be comparing it to another card, or looking at your card reader specs. That sounds like you might be using a High Speed card reader (capped at 25MBps) and not a Ultra High Speed card reader.

          Are you using the card in at least a UHS card reader?

          •  

            @Goldfire: I'm not so sure. The card reader I'm using is USB 3.0. I think that's not reason for the slow speed. I also tested it on several built-in laptop card readers (surface pro 6 and LG gram 14 2016). Still the same low speed.

            •  

              @martinio: I unfortunately don't have a 256GB variant of my 128GB card to test against, like the one in this listing.

              I believe the Surface Pro 6 has a UHS-II card reader on the back, so it should be fine in terms of speed.

              Which seller did you receive the card from?
              Does it have a U3 marking on the card?
              Are you testing with local files? and not over a wifi connection?

              Failing that, I'd be looking at a refund, the speed is too low considering that UHS-III has a minimum of 30MBps.

              •  

                @Goldfire: I contacted the seller and I got refunded today. However the seller denied that he was selling counterfeit and shifted the responsibility to his supplier. I'll stay away from the seller oz-love-deals. I was blinded by the 77 reviews and average 4.8 product rating.

                •  

                  @martinio: I've never heard of that seller.

                  Unfortunately, the reviews and ratings are for that specific item and aren't always for that particular seller.

                  Good that you got your refund though.

                •  

                  @martinio: Hi Martinio, I have the exact same problem as you (except I bought the Samsung Evo Plus 128GB). I've tested the card using a few of the links provided above, and the best write/read speeds I can obtain are 20/7. Did you purchase from 'Apusauction' on eBay as well?

  •  

    Their feedback doesn't look to good.

  • +1 vote

    Getting closer to the "I really have no use for this much storage but hey, why not?" price.

  •  

    any way to use this as main memory in RP 2?

  •  

    What about A1 SD bench and SD Insight for other types of testing?