SanDisk Extreme PRO 64GB up to 95MB/s UHS-I/U3 SDXC Flash Memory Card - SDSDXPA-064G-X46

I haven't done any computer benchmarking or anything of that sort with this memory card. I don't believe that those sorts of tests reflect real life use, since a sequential read/write is relatively uncommon, and you're never writing bunches of tiny files all the same size. I have found, however, that real life performance is beyond what I am able to put this card through. I am using this card with a Sony NEX-5N, which is a compact system camera (mirrorless camera) that writes 16.2 megapixel images in a few different levels of JPEG compression and a Sony RAW format. In addition to RAW images, it also records video in MP4 or AVCHD format at 1080p 60fps. I have used this card to the absolute top performance limits of this camera. It allows me to record 1080p60 AVCHD (28Mbps bitrate) with no hiccups or stutters. I can shoot in burst mode for short spurts, and while this card is not going to magically soak up 10 6MB JPEGs per second, I can get about 10 shots in one second and let the card catch up with the image processor's buffer in a couple of seconds. At this time, no card is capable of writing fast enough to keep up with 10 16.2MP images per second, though, so there is no reason to expect it in this card. I can pull the images off this card fast enough that I don't even notice that I'm actually dealing with a block of flash memory instead of a hard drive. I use Adobe Lightroom to import the images, so I'm not sitting there waiting on a Windows File Transfer dialog. I get to deal with a more pleasing interactive file transfer/import by using Lightroom, so I don't have to sit and twiddle my thumbs, but I'm impressed by the speed that files appear in my photo library on import. I believe that anyone who is going to "benchmark" this card with a full HD video camera or a DSLR will be very pleased with their purchase. I can't speak for people who will use the card for file storage/transfer, but my guess is that those users won't be disappointed either. I know this isn't a super exciting review, but this card just works and I think it was a good value.

Very fast and reliable card. Purchased this for mu Sony Alpha SLT-A57 camera. Works very well with shooting pictures in series and for making video. Enough capacity for long trip. Usually RAW format picture is 3-4 MB. This card should hold approx. 18.500 pictures. I already have 32GB card of the same type and this one and never had problems with lost pictures - this one is additional storage in case I want to make video.

I have reached advertised speeds on a built-in card reader and a newer digital camera but there are a few things anyone should know when choosing a card. Cards with 32GB or less are SDHC and should work with most devices released in the last few years. SDXC will cover cards with higher capacities, such as this card in 64GB. This is an important consideration to Linux users since SDXC uses exFAT which may not work with your OS. If you have an up-to-date Windows installation or a recent Mac release you will be fine without third party software, though a firmware update may be necessary for your card reader if it's pre-'09. You will not achieve UHF speeds on a USB 2.0 bus - you will see a maximum 20-30MB/S depending on file size and other factors. On many host devices the speed gains are negligible during operation because of fast internal memory buffers - I can burst (9/s) an average of 15 shots in RAW+jpeg on my DSLR with a class 6 card, or 18 with this - so probably not worth the premium price for that gain alone. Video there is no difference since the class 6 can float the 20mbps required for 1080i on my camera. In other words, if you can get the extreme pro in 64GB for the same price as the extreme in 128GB, your money is probably better spent on the extreme, if not on a non-UHF card, which is to say class 6 or 10. It may be noteworthy that this card is waterproof and x-ray proof, but does not specify that it is magnet proof as other brands' documentation does. That said, Sandisk has some of the most robust built-in error checking features in the 'biz and other brands don't really compete in quality if you do some research. My advice is to make sure you can use the extra speed you're paying for - if you don't have a USB 3.0 card reader, a host device with USB 3.0 PC connection, or a built-in card reader on a laptop that's either newer or has a recent firmware update, you may be wasting a fair sum of money here. Also make sure your device says SDXC if you do go above 32GB. Many devices' documentation will explicitly say that it works up to 32GB. It'll just try to format the card over and over if you feed it an SDXC. Hopefully some info here was helpful! Happy hunting

Excelente producto duradero

I’m happy with my Sandisk cards so far. Though I wish the process of determining which card to buy wasn’t such a confusing process. For example, why is the 170 read time card cheaper than the 95 read time card? Aside from a faster read time with the 170 card, it appears they are otherwise the same. So shouldn’t the quicker read time card cost more, not less? And why aren’t the write speeds displayed on the cards like the read times are? Aren’t write speeds more important than read speeds? Having to scroll through product descriptions just to find a card’s write speed is quite annoying, especially since you’re having to rely on a seller to be providing correct information. I really don’t understand this, or why there isn’t a simpler naming system for quickly determining which cards are better than others. These memory card companies and the groups who come up with the various naming systems should really consider using less confusing lingo. It can take hours of research trying to learn what the various codes mean, comparing the variety of card options and specs (each brand with it’s own labeling structure and non sensible naming systems), reading through countless reviews and contradictory replies (like these here), and trying to make sure you’re not buying a fake product (which are prevalent, especially here on Amazon). Another oversight is how these companies don’t make it clear that if you don’t have a fast enough card reader, the top speeds of cards are meaningless. You’d think that with the tons of fake cards being sold (bizarrely under Sandisk’s own seller account), the company would do something about this or restrict sales of their products to their shipping center only. You’d think they’d be more concerned about protecting their brand image and actually respond to the numerous reviews from buyers who have received fakes and are claiming faulty and slow cards. And then there’s contradictory info regarding the best approach to removing images from cards. Some say reformatting cards after each use use is best, while others claim that just deleting images is best. And how long can we safely use a card before we risk possible card failure and losing all of our images? Some people recommend replacing cards every year, while others say they’ll last forever. If a company came out with a simple and easy to understand info system (with both read and write speeds on the cards), an easy way to search a camera model to see what card works best for it, a way to prevent fakes being sold under their own store, a customer service team who actually responds to customer complaints and questions, and a recovery app that actually works; I imagine they’d win over a large sector of the photography community (especially entry level neophytes) who don’t want to spend half a day figuring out what card to buy.

Decent read write speeds for still photography. Great as a backup.

I commanded my data to move swiftly. It obeyed like lightning called from the sky.

I'm a reporter. Have been since 1982. That means nothing of course. It's a dying trade as my father told me when I got into it. I started writing and shooting. I souped my own film that I bought in bulk and printed my own images. I rarely shot color. As I advanced in my career, I'd bring along an actual photographer. I was always a better writer. But the industry is no longer viable. I have gone back to working at a weekly like another of one of my close friends from college. We shoot all our own art and write mostly sports stories. I shoot from 300 to 900 images on a game. Then I sort through them. Sometimes, I have to shoot multiple assignments without downloading any of them. This little card crams so much data into it's little confines, it blows my mind. I got it because last year, I got roped into doing video with my Canon 7D Mark II of an induction ceremony into an athletic hall of fame. I nearly ran out of space and battery life. But I finished the assignment. I was so stressed that I didn't eat the free food. And I had a 32 GB card. I got two more batteries and this card. I've never had problems or anything to complain about. It holds up to daily use. Of course, I try to be careful and treat it with respect. No problems. Love it. Don't love late night assignments though. Ugh.

Dopo aver fatto i primi test in burst ed in trasferimento, sono rimasto deluso: le prestazioni di "scatto a raffica" sono esattamente identiche alla mia vecchia Sandisk Extreme III (30Mb/s), mentre quelle di lettura e scrittura sulla scheda da pc si discostavano di poco: Test con 1,9GB Mb -> lettura da Sandisk Extreme III: 1m 27s -> lettura da Sandisk Ultra Pro: 1m 27s -> scrittura su Sandisk Extreme III: 1m 50 -> scrittura su Sandisk Ultra Pro: 1m 33s Il motivo è presto spiegato: per poter arrivare a sfruttare i 95Mb/s dichiarati, la fotocamera ed il lettore di SDHC devono supportare l'interfaccia UHS-I: Così, convinto nel perseverare nel mio intento di sfruttare la super velocità della scheda, ho acquistato un SD Reader della Sonnet per MacBook Pro (si alloggia nella porta CardExpress), che sfrutta l'interfaccia UHS-I, ed ecco i risultati: -> lettura su Sandisk Ultra Pro: 37s -> scrittura su Sandisk Ultra Pro: 40s Insomma, il prodotto è ottimo, ma bisogna accertarsi di disporre di uno strumento che sia in grado di sfruttare la nuova interfaccia UHS-I. Con le fotocamere non UHS-I (che supportino le SDHC) è compatibile, ma va alla stessa velocità di quelle che trasferiscono 30/45 Mb/s (e costano la metà). La differenza di trasferimento delle foto è enorme nella copia su computer di sessioni di fotografia per chi, come me, scatta in RAW + JPEG. Come descritto sopra, l'SD Reader della Sonnet che ho acquistato per poter sfruttare l'interfaccia UHS-I della Ultra Pro si è rivelato un ottimo investimento per poter beneficiare di questa ultra-velocità; quando mi capita di utilizzare SD non UHS-I la lentezza nella copia di 5/6 Giga di foto è aberrante!

Diese SDXC Karte gehört zu den schnellsten die es überhaupt auf dem Markt gibt. Leute mit (semi)profi DSLR Kameras können sich darauf verlassen bei 'burst' oder 'Raw' Aufnahmen oder HD Video ohne große Verzögerungen beim speichern. Die Bauqualität ist solide und zuverlässig. Bei uns in den Niederlanden ist der Preis bedeutend höher. (Deutsch ist nicht meine Muttersprache)

Simply super fast and enough space. I get 1700 RAW shots 24MBs each on my Nikon D 5200. Don't buy cheaper ones and don't buy lesser capacity ones. Having such faster speed this card enables camera to shoot more frames on continuous burst mode (RAW). Having huge space means you don't need to carry laptop when you travel to transfer images. Also when you are recording vidoe you need not to worry about filling the card too fast. It works perfect and does what it is supposed to do.

✅ Carte SD durable dans le temps, et toujours aussi fiable depuis plus d'un an. ✅ Très bonne vitesse à l'usage, on peut difficilement attendre mieux pour une carte SD à ce prix là à moins d'opter pour un format compact flash, mais encore faudrait-il que votre DSLR ou autre appareil soit compatible. Donc très bon point pour ce choix. ✅ Prix très correct à cette qualité, 60€ pour 64Go. ⛔️ Je ne vois pas de moins pour cette carte. Je ne sais pas en revanche si "l'emballage facile" ou "déballer sans s'énerver" soit une option utile. À moins d'avoir des patates à la place des doigts ou une difficulté particulière, ce n'est pas utile pour moi. Je ne regrette absolument pas l'achat de cette carte mémoire, elle est fiable, a une capacité suffisante même pour shooter en RAW + JPEG sur un voire deux shooting photo, et même un shooting vidéo de plusieurs heures. Les deux batteries de mon Canon 80D auront lâché avant que la carte mémoire soit pleine. Je ne pense pas qu'elle me lâche de sitôt, mais je la reprendrai volontiers. Mon avis vous a aidé ? Cliquez sur le « Oui » juste en dessous pour me remercier. N’hésitez-pas pas à me poser vos questions ;)

This is a fantastic card, wanted it in my SLR to clear my camera's memory buffer quickly during high speed shooting. I was concerned that this was not a genuine SanDisk product, but I emailed SanDisk with the S/N and they confirmed that it IS a genuine SanDisk product. No worries there. The free subscription to RescuePRO Deluxe is a nice little bonus. Product key is inside the box. For the techies, here's the output of my read/write test done with H2testw software v1.4. Warning: Only 60873 of 60874 MByte tested. Test finished without errors. You can now delete the test files *.h2w or verify them again. Writing speed: 76.3 MByte/s Reading speed: 82.7 MByte/s H2testw v1.4