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🚀 Speed, Security & Storage — Your Data’s Best Wingman
The SanDisk 64GB Ultra USB Flash Drive combines USB 3.0 technology delivering up to 130MB/s read speeds with robust 64GB storage capacity. Featuring 128-bit AES encryption for secure file protection and a durable design that endures temperature extremes and daily wear, it’s the perfect fast, reliable, and secure storage solution for professionals on the move.









| ASIN | B00DQGBYDC |
| Best Sellers Rank | 159 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 6 in USB Flash Drives |
| Box Contents | SanDisk Ultra 64GB USB Flash Drive USB 3.0 up to 130MB/s Read (SDCZ48-064G-U46) |
| Brand | SanDisk |
| Brand Name | SanDisk |
| Colour | Black |
| Compatible Devices | Computer, Laptop, Laptop |
| Compatible Phone Models | Laptop,Personal Computer |
| Connectivity technology | USB |
| Country of Origin | Switzerland |
| Customer Reviews | 4.6 out of 5 stars 209,779 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Flash Memory Type | USB memory stick |
| Global Trade Identification Number | 00619659102197, 05054242065902, 06196591021976, 06456322343235 |
| Hardware Connectivity Technology | USB Type A |
| Hardware Interface | USB 3.0 |
| Hardware interface | USB 3.0 |
| Item Dimensions D x W x H | 6.1D x 7.5W x 3.3H centimetres |
| Item Part Number | SDCZ48064GU46 |
| Item Type Name | 1 |
| Item Weight | 9 g |
| Manufacturer | SanDisk |
| Manufacturer Part Number | SDCZ48-064G-U46 |
| Model Name | SDCZ48-064G-U46 |
| Model Number | SDCZ48-064G-U46 |
| Network Connectivity Technology | USB |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Features | Operating temperature range:0 - 45 °C |
| Product Warranty | 5 |
| Read Speed | 100 Megabytes Per Second |
| Read speed | 100 Megabytes Per Second |
| Secure Digital Association Speed Class | Class 2 |
| Special feature | Operating temperature range:0 - 45 °C |
| UPC | 619659102197 |
| Unit Count | 1.0 count |
| Write Speed | 80 MB/s |
| Write speed | 80 MB/s |
J**.
Fantastic product!! Great price!!
Fantastic pen drive!!! Does exactly what it says on the box. Highly recommended..
Z**D
Thirteen SanDisk products to date from Amazon and all ultra reliable
According to my previous backordering information on Amazon I've bought thirteen SanDisk products in the past, including eight flash drives. Why? Because it's a brand I trust after proving ultra reliable with every item I own or have owned. I suppose I bought my first SanDisk product on a quality recommendation and have looked for the name ever since. I have bought alternative flash drive and SD card products of varying quality but always return to SanDisk. Whether they really are one of the top brands I couldn't say, but they seem to have a good name and certainly work for me. Most of the use for flash drives and SD cards is for storing my ever-expanding collection of sound samples for music making. With having limited storage on my computer I obviously have to look to external storage solutions. I find traditional external hard disks clumsy and need something I can quickly change over in any case depending upon what kind of music I'm creating so flash drives and SD cards are ideal as I keep varying collections on various drives. However, reliability is a must as some of my sound samples aren't backed up and just sit on the drives and cards themselves. Not many but sufficient so I can't have anything whereby I might lose them. Most of my newer products like the one reviewed here are USB 3.0, and for what I need them for they read and write quickly enough. There are some speed fluctuations but these seem to be related to what kind of files I'm moving or copying. Compared to earlier USB standards like USB 2.0 there's no comparison as these do the job considerably quicker (up to x10 the speed according to the advert). They're perfectly compatible with the earlier standards though; it's just that transferring files between the two takes longer. Like all similar devices of this speed and type there'll be variations between models and manufacturers, but as long as these ones reliably work and quickly copy files then that's all I'm bothered about. I certainly have no complaints this way. I've watched videos from them as well and they work fine without break or stuttering of content. I'm sure this is down to the operating system too but it's good to know that the drives are easily fast enough for this as well. They seem to be fairly robust too. I haven't dropped any onto hard surfaces but have dropped a few from chair height onto carpeting. Obviously, the outer shell has remained intact, and thankfully the data has too. I use SanDisk in the car for playing music files. The flash drive I normally use is an earlier version than the one I'm reviewing here but I'm presuming the outer casing is the same. It looks to be similar. Again, it's never been dropped onto a hard service, but on occasion when I want a change it gets put into a glove compartment with a variety of other bigger and heavier items and it seems to survive okay. Similarly, I have three of these drives in a drawer next to where I work, which also has a variety of heavier items in it, which often get moved around and end up on top of the drives, but again they survive without damage. Unless I plan to be particularly careless with them, I'm convinced these are good quality, robust products; products I'm happy to entrust important data to that will withstand reasonable handling and storage. The drives survive well in a variety of temperatures too -- everything from being outside in the car in freezing temperatures to being in the house on the hottest of British summers, and no matter what the temperature variation they're still as readable and writable as ever. I haven't used the supplied security software that comes with them and usually just delete it upon receipt, but I'm sure it will work well enough if I had a need for it (and would be a trusted solution if I had to move sensitive data around). There's nowhere to write on the drives as to what they are so I identify them by wrapping different coloured tape around them. I like the fact that drives like these are retractable but find this is rarely used once I have the tape around them. Without the tape I would use the feature. This drive is 256 GB, which is larger than I usually buy, but have bought one previously of the size so know it holds a good whack of data. Copying and moving files onto it is super easy as it works straight out of the packaging. For me it's just a case of drag and drop and that's it. In other words there's no formatting or preparation required (certainly not for a Windows-based computer, anyway). In terms of file numbers then I can't really guess, but it has to be a considerable number -- probably thousands. I refer to music files here but obviously smaller files will be even more. Size-wise these drives work well; they're small enough to be easily portable but not small enough to be easily lost. If one is put into a pocket then it can be easily found again without too much scrabbling. Personally, I like the black colour because if the drives have be left lying around anywhere then their dark colouring allows them to be much easier hidden away in dark corners or drawers and not so conspicuous, which may be important if they contain sensitive data. Pricewise, these are good from Amazon and I appreciate the speedy delivery so am happy to keep ordering for as long as I need the product. Note: Since writing this review I've since bought another one of these drives: same speed, same size, same design and same reliability -- SanDisk product number 14!
L**Y
Another reasonable , reliable and nicely priced offering from Sandisk. With decent speeds too.
For me and USB flash drives , I find SanDisk to be the most reliable of brands , especially if you're sticking to the lower and mid range priced products. Sure they're usually not the fastest , but I have found after owning dozens of different USBs from different brands , that somehow Sandisk never fails me. For over a decade I have bought least a few dozen different Sandisk USB flash drives (From USB 1 - USB 3) and none of them have failed me. When I say failed , I mean none have them have stopped working or none of them have started to behave strangely. None of them have even had any short terms problems lost me any files either. For that , Sandisk have my trust. They are reliable products. but not necessarily the fastest. I have also flash disks from many other brands too. I have bought less from other brands and some of those brands , I have had a few of those drives fail or just have something wrong that makes them work strangely. Some of those flash drives have also gone bad temporarily at times and lose/corrupt data and files. Some of these brands are even regarded as trust worthy and well established. It's funny I bought way more Sandisk branded USB Flash drives and none of them caused problems or failed. I bought way less from the other brands and some of those brands had failures.(One brand in particular had a pretty high failure/fault rate) Enough about my thoughts on the brand , now onto the product itself. The Sandisk Ultra seem to be their most widely availible and affordable USB 3 flash drives they've been making in the past few years. It's their among cheapest USB 3 and the Ultra actually comes in other variations that share similar prices. (The rubber-like Ultra Trek and the Metal Ultra Flair) Today we'll be looking at the plastic one. Sandisk USB 3 Ultras , probably aren't that fast for most people going by USB 3 standards , but if you came from USB 2 , the difference in speed feels like quite a lot. The Ultra also tends to be quite a bit faster than a lot of other Flash drives within in the same price range from other brands too. But the Ultra tends to be a little bit more expensive than these slower flash drives. The main difference I can tell when comparing it to these slightly slower USB 3 flash drives from other brands that are similarly priced , is that there seems to be alot less buffering when writing. These other flash drives can sort of achieve faster write speeds than Ultra , but only in short bursts , and then they have to buffer down to USB 2 like speeds for a few seconds , then go back to fast burst , then slow buffer , fast burst , then slow buffer .... etc ... (Buy a really cheap Kingston or Integral drive for example to see this happen) I noticed that USB 3 Drives from Sandisk don't seem to do this. They seem to maintain a steady write speed instead . There's a lot less pausing (In most cases almost none) to buffer , so I think Sandisk uses much more efficient chips to process it all , even in their cheaper flash drives. Maintaining an overall steady slower write speeds , seems to be overall much faster , than a cheaper flash drive that can't maintain their fastest speeds for long , as those ones tend to pause for a few seconds to allow for buffering , which almost makes their short term speed advantage redundant. A good analogy is almost like the Tortoise and the hare. The Sandisks are slow and steady , keep on marching at a steady pace and finish earlier. While the other brands cannot maintain their fast speeds for long and have to take frequent pit stops to catch their breath and buffer , so somehow finish later than the tortoise. So overall the Sandisk Ultra is a fairly good speed for it's price when it comes to USB 3. It beats alot of similarly priced flash disks from other brands around the same price , due to a lot less buffering. The main bad things about the plastic version , is well it's plastic case. I've owned dozens of Sandisk over the years and despite me having my full trust in terms of reliability , it pains me to say they created tons of stinkers when it comes to physical designs of their outer shell/casing. Especially with their extensively Cruzer USB 2 range. They had tons of variations of the Cruzer line up in the USB 2 era , it's like they didn't know when to stop , trying to out do itself in making awkwardly shaped designs. I wish they would stop creating flash drives in unconventional shapes and just back to producing the simple classic small rectangular / oblong slider , they were using for many of their USB 1 flash disks and the first few iterations of their USB 2 flash disks too. Those were the best. The plastic Sandisk Ultra USB 3 , is one of it's worst designs in their history my opinion. Which is a huge shame , because it seems to be their most widely available / produced and distributed model of USB 3 . The main disapointment is the tail end of the platic portion of the body , that the drive resides in is made of a very thin plastic and looks like it would be very easy to break. I remember reading a review that it was compared to the plastic that you would probably find on a cheap free toy prize, that you would find in a box of cereal. I unfortunatly tend to agree with that observation. Sorry Sandisk you real cheaped out on this one. In combination that the type sliding style method they chose is also slightly awkward to use , you shouldn't be too surprised if the thin plastic will snap one day if you're not careful. Another thing I noticed , is that they skimped out in another area, with newer revisions of this model. I have actually bought quite a few of these plastic Sandisk USB 3 Ultra flash drives over the years , and I noticed in earlier versions of this product : there was a blue LED light that blinked during data reading/transfer. Later revisions of the same model , seemed to have removed/omitted this blue LED light , presumely to save on costs. Although I guess it was not essential , it's still helpful in a way to still have the LED light. I do hate it when products have features taken away , especially when it's done coverly without drawing attention. So that's another downer for me. Overall despite the physical short comings , the Sandisk Ultra is still a reliable USB 3 Flash drive on the inside , that won't cost you too much. Although I do recommend actually you go for the rubber-like Sandisk Ultra Trek which I think has a better form factor if you don't mind lids. The Trek feels more sturdy and seems to have the same speed performance as the plastic . I have yet to try the metal Ultra Flair , but I'd assume it's the same on the inside too , since it shares the same name : Ultra. Ultra Plastic , Ultra Flair and Ultra Trek all share a similar price range , especially if you buy direct from Amazon. It's all a matter of preference in the outer shell/case. Although, if you can spare another extra few pounds , you might want to try Sandisk Extreme Go . Which is has a pretty significant speed boost over the Ultra and with less buffering , without breaking bank too much. without setting foot into premium territory. but in the end the Sandisk Ultra is a good choice for an reliable, reasonable fast, lower end USB 3 Flash drive at an affordable price. I still recommend it .
K**A
Great find
Good value for money. Compact, discreet and easy to use.
J**I
Fast, Reliable, and Highly Durable – Excellent USB Drive
I recently purchased the SanDisk Ultra USB 3.0 256GB Flash Drive, and it has exceeded my expectations. With a huge 256GB capacity, it’s perfect for storing large files, videos, documents, and backups. The USB 3.0 interface delivers fast transfer speeds up to 130MB/s, which makes moving files quick and hassle-free. The build quality is solid and durable. The drive feels sturdy and compact, making it easy to carry around without worrying about damage. I also appreciate the added security features—password protection helps keep my data safe, and the RescuePro Recovery Software is a lifesaver in case files are accidentally deleted. It’s plug-and-play, so setup is straightforward, and it works seamlessly on Windows, Mac, and other devices. I’ve been using it daily for both work and personal files, and it hasn’t failed me once. Overall, the SanDisk Ultra USB 3.0 256GB is a reliable, fast, and durable storage solution. It’s perfect for professionals, students, or anyone needing a high-capacity, high-speed flash drive. I highly recommend it for anyone looking for a trustworthy USB memory stick that delivers both performance and security.
G**Y
Great name still giving high quality at decent prices.
Bought this for doing the navigation updates in the car and it has been perfect, my old drive was sketchy and not to Sandisk standards so updates did not always go well even failed a couple times altogether which made me look for this and this one has done 4 updates on mapping without a single glitch. It is reliable ,read / write is fast, and the closing up feature is better for me than a cap on the end. I have always preferred Sandisk for portable cards and sticks and glad that I chose them again with this and the 128G stick I bought same time for storage. Very highly recommend.
M**R
Great
Great usb connects to my 4k tv with no issues...alot of other usbs fail to connect
W**L
Works fine
I have two. Never had a problem with data loss. I use it to connect to my TV. Always plays content without issue.
A**E
SanDisk Ultra Flash USB Sticks sind perfekte Alleskönner. Lange haltbar, sehr robust. Nur Diese. .
SanDisk Ultra Flash USB Sticks sind absolut Top. mp4 Videos gehen mühelos schnell drauf. In einpaar Minuten waren über 1000 Videos kopiert. Sie sind robust und halten. In den letzten Jahren bevorzuge und kaufe nur noch diese. Sie haben mich noch nie im Stich gelassen. Auch Fotos, Dokumente, PDF Dateien, sogar Videospiele werden gespeichert. Also ich war verblüfft, das dies überhaupt möglich ist. Auch der Preis ist absolut in Ordnung. Wie gesagt, nur noch SanDisk USB Sticks hab ich bei mir zuhause. Auch fürs TV benutze ich sie und nehmen perfekt auf. Leute die sind die Besten. Halten lange. Ich hab mehrere von denen schon mehr als fünf Jahre und funktionieren immer noch wie am ersten Tag. Mir ist noch nie einer kaputt gegangen, obwohl sie sehr oft benutzt und wieder neu beschrieben wurden. Was will man mehr? Probiert diese echt mal aus. Empfehlenswert. Absolute Kaufempfehlung.
S**.
SanDisk as SanDisk
All good, didn't check yet
M**S
Kompakter Speichergigant
Der SanDisk Ultra USB 3.0 Flash-Laufwerk mit 64 GB Speicherkapazität ist ein Paradebeispiel für die moderne Datenspeicherung. Dieser kleine, aber mächtige USB-Stick ist mit seiner High-Speed-Übertragung von bis zu 130 MB/s nicht nur flink, sondern auch unglaublich effizient im Umgang mit großen Dateien. Ob für die Arbeit, die Universität oder zur Speicherung persönlicher Daten – die Leistung ist beeindruckend. Ein weiteres Highlight ist die SecureAccess Software, die einen zusätzlichen Datenschutz durch Passwortschutz bietet. Dieses Feature sorgt für ein Plus an Sicherheit, das gerade in der digitalen Welt von heute unerlässlich ist. Die Einrichtung ist unkompliziert, sodass auch weniger technisch versierte Nutzer schnell Zugang zum sicheren Speichern ihrer Dateien haben. Das Design ist stilvoll und funktional mit einem einziehbaren Anschluss, der den Stick vor Schäden schützt, wenn er nicht in Gebrauch ist. Zudem ist der Stick kompakt genug, um ihn auf Reisen mitzunehmen oder an einem Schlüsselbund zu befestigen, sodass er immer griffbereit ist. Insgesamt liefert SanDisk hier ein Produkt, das in Sachen Geschwindigkeit, Kapazität und Sicherheit kaum Wünsche offenlässt. Der Ultra USB 3.0 ist ein verlässlicher Begleiter für alle, die viel unterwegs sind und dabei nicht auf schnellen und sicheren Datentransfer verzichten wollen.
R**D
Compacte.
Très compacte et de bonne capacité. Les vitesses de transfert sont correctes. Embout rétractable.
N**M
HANDLED WITH PC AND MOBILE, NO BAD MARKS..
Satisfied,so five star Order delivered within range as they said. Connected with my pc having 6gb of ram and running with windows 10 os.. For the first use, it showed a writing speed of 20-30 MBps. Then formatted the drive with its default allocation size and performed another write operation using teracopy. It indicated a consistent write speed of 36mBps(operation completed within 7 minutes for 12gb) Read speed also looked good. Coming to the physical appearance and quality, Its connection end is metallic (differs this time according to other sandisk products) and reliably made. 64gb 3.0 pendrive willn't disappointing you..
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