SanDisk 128GB Extreme PRO SDXC UHS-I Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXY-128G-GN4IN - SoppiGO
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SanDisk 128GB Extreme PRO SDXC UHS-I Card – C10, U3, V30, 4K UHD, SD Card – SDSDXXY-128G-GN4IN


Last updated on October 23, 2021 9:17 am


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  • Shot speeds up to 90MB/s, transfer speeds up to 170MB/s [requires a compatible device capable of reaching such speeds, such as the SanDisk SD UHS I card reader (sold separately)] | Based on internal testing; Performance may be lower depending upon host device, interface, usage conditions and other factors 1MB=1,000,000 bytes; X = 150KB/sec
  • Perfect for shooting 4K UHD video (1) and sequential burst mode photography, (1)Full HD (1920×1080) and 4K UHD (3840 x 2160) video support may vary based upon host device, file attributes and other factors. Compatibility – Compatible with microSDHC and microSDXC supporting host devices
  • Capture uninterrupted video with UHS Speed Class 3 (U3) and video Speed Class 30 (V30)(2) | (2)UHS Speed Class 3 designates a performance option designed to support 4K UHD video recording with enabled UHS host devices; UHS video speed class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real time video recording with UHS enabled host devices
  • Built for and tested in harsh conditions (3): Temperature Proof, Water Proof, shock Proof, and X ray Proof, (3)Card only
  • Lifetime limited manufacturer warranty (30 year warranty in Germany, Canada and regions not recognizing lifetime warranty; See official SanDisk website for more details regarding warranty in our region)
  • System ram type: ddr3l_1600_sdram

Specification: SanDisk 128GB Extreme PRO SDXC UHS-I Card – C10, U3, V30, 4K UHD, SD Card – SDSDXXY-128G-GN4IN

RAM 128 GB
Memory Speed 170 MB
Number of USB 2.0 Ports 1
Brand SanDisk
Item model number SDSDXXY-128G-GN4IN
Item Weight 0.635 ounces
Product Dimensions 0.09 x 0.94 x 1.26 inches
Item Dimensions LxWxH 0.09 x 0.94 x 1.26 inches
Manufacturer SanDisk
Is Discontinued By Manufacturer No
Date First Available January 17, 2019

9 reviews for SanDisk 128GB Extreme PRO SDXC UHS-I Card – C10, U3, V30, 4K UHD, SD Card – SDSDXXY-128G-GN4IN

2.6 out of 5
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  1. Neil K

    Misleading – You can only get the claimed 170MB/s read speed with a Sandisk UHS-1 USB Card Reader as it utilizes proprietary technology to go above UHS-1 speeds.

    With a Delkin USB 3.0 Multi-Card reader that supports UHS-II; this card gets 92MB/s read and 84MB/s write.
    With my Surface Book 2 built-in SD card slot, this card gets 98MB/s read and 75MB/s write

    Update – changed to 2*

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  2. Stéphane

    Les SanDisk Extreme Pro sont des valeurs sûres ! J’en utilise beaucoup depuis des années avec quasiment jamais de problème. Je fais entièrement confiance à cette marque pour la qualité de ses produits.

    En revanche, cette nouvelle gamme de 170 Mo/s a exactement la même vitesse que l’anciennce gamme dite 95 Mo/s… Alors pourquoi avoir changé la dénomination. D’autant qu’en réalité les vitesses sont toujours plus basses.

    GAMME 95 Mo/s
    Ecriture réelle = 75-80 Mo/s
    Lecture réelle = 90 Mo/s

    GAMME 170 Mo/s
    Ecriture réelle = 70-75 Mo/s
    Lecture réelle = 90 Mo/s

    Explications ?

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  3. Patou

    Rien a dire sur la qualité de la carte mémoire, j’attends de la tester sur le terrain, cependant… le premier test montre une vitesse de lecture de 88Mo/s au lieu des 170 Mo/s attendu. Vitesse en écriture ok..
    Le vendeur peut il éclairer ce sujet ?

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  4. Waldo

    This product review is for the 128Gb – New Gen Model.

    The product seems to be accurate to others. Non yellow tab indicates not a fake card at first glance. However, this does not seem to be an issue with the “New Gen” cards though.

    Product has non-embossed label on the back labeled “Made In Malaysia”.

    The only thing that throws me for a loop is the part number. The only thing that makes sense is that this card is NOT a US market card, which could very well be why some people have issues with US market cameras. I would highly suggest formatting the card before first time use. I ‘scoured’ the SanDisk website, going through different regions, and couldn’t seem to find the SDSDXXY-128G-GN4IN model number. My “google-foo” also doesn’t really reveal any hard evidence of it being a legitimate model number. The only legitimate model numbers I can accurately find are in between what this card represents, which are the following: SDSDXXG-128G-GN4IN, SDSDXXY-128G-ANCIN, & SDSDXXG-128G-ANCIN. Also, oddly enough, even Singapore (in Malaysia) doesn’t carry the model number.

    Are we all getting duped, who knows? Do they work, seems to be hit or miss. Is it worth the hassle, probably not. Which is why I’m giving this 3 stars.

    Will do some further testing to verify it they actually work as advertised. If not, I’ll stop being a cheap-o and just fork out the mulah for actual retail ones.

    I’ll be back.

    Update 12/5/19
    Ok, I’m back. I decided to order a couple US market versions of these cards from Best Buy (black Friday sale was actually cheaper than this Amazon version). The model number is obviously different. The packaging is different as well. The card comes in a combination of the ‘old gen’ cardboard packaging with the ‘new gen’ plastic sleeve w/ pull plastic inserted, sandwiched between the cardboard. As pictured, the ‘new gen’ model here comes in that kind of sleeve, but in an actual box.

    Interestingly enough, both the Best Buy and ‘new gen’ Amazon cards are IDENTICAL. Same alphanumeric combo written on the back and both say “Made In Malaysia”.

    After testing all the cards, they all produce the same read/write speed. It’s VERY important to note that to get max performance out of these cards, it is crucial you use a USB 3.0 input with an UHS-I compatible reader.

    Regardless if these Amazon cards are knock-offs or not, the new gen appear to be identical to the US market cards, and they perform the same. Therefor, I’m bumping up to 4 stars. Minus one star for having a weird part number that seems to be illegitimate, and for the fact that despite all this research, you can actually go for the peace of mind and get the US market card for the same price during certain times of the year. Take your pick.

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  5. Administrator

    Sandisk box came opened. Would have been much happier to receive a sealed package from manufacturer. Makes me doubt the authenticity of the item. Seems to work ok and have the specified capacity. Nothing like as fast as I expected and soon slows to a stop on burst shooting. Not convinced it’s genuine thanks to the open box so only one star.

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  6. Eric W

    I was surprised to find this card for the same price as the Extreme Pro 95MB/s that had been available for a while. Almost double the read speed for the same price? Awesome! Not so fast there…

    If you read the fine print on SanDisk’s website or the product packaging you’ll see that it requires proprietary technology to achieve the full 170MB/s read. Otherwise it maxes out at around standard UHS-I speeds of 90MB/s read, 80MB/s write. (It’s called a standard for a reason.)

    At first I thought my laptop’s integrated card reader just wasn’t up to par so I tried an external one, same results. It seems the only device capable of achieving these speeds is SanDisk’s own USB 3.0 card reader, and other certified/participating devices (which so far includes nothing else). Normally I’d be upset about this but, at the time of writing, this model is almost the exact same price as the 95MB/s model, only a few cents higher. So I can’t really complain, it’s not like I was swindled out of more money, it’s basically the same price, with the potential ability to read and write faster should you purchase their USB card reader. I’m giving it three stars because it is misleading to boldly print 170MB/s, when that’s not achievable by 99% of customers. Otherwise, so far it seems like a fine card, as long as it doesn’t suddenly die I may bump it up to 4 stars in the future.

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  7. JW

    New: 2 more of these cards are splitting open. The faceplate that says Sandisk on it is coming off of the card and jams in both cameras and readers. The faceplate is what captures the lock switch, so when it peeled back, the lock on one card fell out, fortunately not into a camera. Sandisk customer service, without even seeing the cards, said, “Normally this is considered to be physical damage due to mishandling which is not covered under SanDisk warranty.” “Normally”? How often is this happening, and to how many users? I’ve never had a PNY or Transcend card come apart and they are going into and out of the same cameras and cases, and I’ve been using the other brands longer than Sandisk. Sandisk is supposed to be a top brand, but these cards just don’t cut it. They should change the name to Extreme Poo.

    Prior review. This is a downgrade from my prior 5 star review. While the card was working, it was great. However, while pulling it out of my Pelican card case, I noticed that the sd card’s case was splitting open along the seam (sort of like a book opening). I was in the field and it was my last card, so I put a tiny amount of superglue on it and re-sealed the case. The card worked fine for another month or so, then failed – none of my cameras could see it, and it wasn’t locked. I contacted Sandisk and they said that because I glued it back together, I voided the warranty. That really shouldn’t matter, because glue or no glue, the case cracked open, and they claim these are super-durable. I’ve never had a Transcend or PNY card fail, so will be going with them in the future

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  8. The Supreme Creature

    I tested the card when it arrived today and the capacity is correct. However here are the read/writes speeds after repeated tests:

    Warning: Only 60803 of 60874 MByte tested.
    Test finished without errors.
    You can now delete the test files *.h2w or verify them again.
    Writing speed: 81.9 MByte/s
    Reading speed: 89.1 MByte/s
    H2testw v1.4

    I am aware it says “up to 170MB/s” however this is pretty far from it, isn’t it? It even says the same thing on the card, it’s not like it’s a typo on the Amazon page. Why???

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  9. CK

    Ich benutze SanDisk Extreme Pro (128) schon seit einiger Zeit und war bis jetzt sehr zufrieden.
    Jetzt habe ich die mit einer Leserate von 170 mb/s genommen.
    Das Problem, man hat sich bei SanDisk gedacht, wir ändern einfach mal die Norm und machen die Karten einfach mal ein Tick breiter.
    Jetzt gehen die Karten bei der GH5, MacBook Pro und bei der HCX1 etwas schwerer rein und wenn die Geräte warm sind, gehen die Karten sehr schlecht raus.

    Die Vorgänger mit 95 mb/s flutschen wie Sau.
    Ich wollte über Amazon mit SanDisk Kundenservice telefonieren, doch Dieser wollte sich zu dem Problem nicht äußern.
    Habe die beiden Karten zurückgeschickt und hab wieder die etwas langsameren mit geringer Leserate bestellt.

    Nachtrag 7.9.2020

    Ich brauchte wieder neue 256Gb Karten und hab diese bestellt.
    Wieder gingen diese schwer rein und raus.
    Nach langen probieren habe ich mit einem schmalen Schraubenzieher, die Pins etwas runtergedrückt und siehe da, die Karten gehen jetzt besser rein.

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    SanDisk 128GB Extreme PRO SDXC UHS-I Card – C10, U3, V30, 4K UHD, SD Card – SDSDXXY-128G-GN4IN
    SanDisk 128GB Extreme PRO SDXC UHS-I Card – C10, U3, V30, 4K UHD, SD Card – SDSDXXY-128G-GN4IN


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