Memorial Day SaleEnds 5/25. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

Model:
SDCZ430-256G-A46
SKU:
6182934
$45.99
Save $25
The comparable value is $70.99

Customer reviews

Rating 4.7 out of 5 stars with 1435 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

95%
would recommend
to a friend

Customers are saying

Customers love the Ultra Fit 256GB USB 3.1 Flash Drive for its compact size and ample storage capacity. Many users appreciate its speed and overall performance, finding it easy to use with devices like the Tesla Model 3. However, some customers have reported that the plastic casing can get hot, and a few have mentioned concerns about the USB port usage.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 70 Showing 1,381-1,400 of 1,435 reviews
  • Rated 5 out of 5 stars

    Impress

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So small but huge storage more than enough for my need.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Good drive. Slow transfer speed.

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Slower transfer speed than what was expected from a 3.0 drive.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    IT'S OK.

    |
    |
    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Compact but not durable, data storage with no cap protection. Speed not fast as the full size flash drive.

    I would recommend this to a friend
  • Rated 2 out of 5 stars

    Broken after a few days

    |
    |
    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Stopped working after a few days. Didn’t do anything but plug it into an Xbox.

    No, I would not recommend this to a friend
  • Rated 5 out of 5 stars

    Compact and Economical Drive

    |
    |
    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very compact and economical drive. Excellent read/write speeds. Small size makes it easy to pack for trips away from home but also makes it easy to lose.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    The slowest USB drive I own

    |
    |
    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Write speeds no greater than 20 MB/s and it's driving me nuts. It's easily the slowest USB drive I own and was a waste of money. Might have something to do with how incredibly hot it gets.

    No, I would not recommend this to a friend
    • Brand response from SanDisk Team
      Posted .

      Hello, we apologize for the inconvenience this has caused you. This matter can be best addressed through our technical support team. Please visit our support site where you can find our customer technical support phone numbers, open a ticket, chat live or check the status of an open ticket https://www.sandisk.com/about/contact/customer-care. SanDiskConnections

  • Rated 1 out of 5 stars

    Cannot Recommend Mine Died

    |
    |
    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I should have known this thing was too good to be true. The size and capacity was impressive. However, after a couple of months after I purchased it stopped working and I lost the data that was on it.

    No, I would not recommend this to a friend
  • Rated 5 out of 5 stars

    Useful for additional storage space.

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Using on an Xbox series S for older Xbox games. Storage is severely limited and this is helping out. Only works for old games. No series games.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Junk

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Cheap plastic housing broke inside of usb port. Lost a few days of important project files. Its my fault. I knew how poorly made the product was when i first opened the package. My surface computer was over heating and i needed to backup some files temporarily. I took the chance and lost that bet. What’s worse than buying a defective product? Best buy’s service. It failed in 4 days. I went ti the geek squad counter and was told it would cost over $500 to attempt fike recovery. I checked around for othet options for recovery. After 15 days Best Buy would not provide a refund.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    password for a back up ?

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    too much trouble for a back up storage device. piece of crap.

    No, I would not recommend this to a friend
    • Brand response from SanDisk Team
      Posted .

      Hi, we thank you for taking your time out and posting a review for this USB Drive. We appreciate your candid feedback. If you wish to get help from our support staff for using this USB Drive, please feel free to contact SanDisk® Support at 1-866-SANDISK and we would be glad to assist you. SanDiskConnections

  • Rated 3 out of 5 stars

    Average

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Need to reformat to save a 6gb file. Prefer a different brand

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Died in 3 months. I say skip it

    |
    |
    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Died after 3 months. Would not purchase again. The computer doesn't even recognize it as a USB device. It is totally dead. What a waste of money.

    No, I would not recommend this to a friend
    • Brand response from SanDisk Team
      Posted .

      We are so sorry to hear about your experience with the Ultra Fit USB 3.1 (SDCZ430) flash drive. This is not typical for our products, and we would be happy to help. Please reach out to our Technical Support team for troubleshooting and warranty options.
      You may raise a ticket with us at: https://support-en.sandisk.com/app/askweb SanDiskConnections

  • Rated 3 out of 5 stars

    Not the best but it will do

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The read and write speeds are slower than expected

    No, I would not recommend this to a friend
    • Brand response from SanDisk Team
      Posted .

      Hi, we thank you for taking your time out and reviewing this USB Drive. We appreciate your candid feedback. For any other suggestions/ queries with any SanDisk® products, please feel free to contact SanDisk support directly and we would be glad to assist you. SanDiskConnections

  • Rated 1 out of 5 stars

    May not be 256GB

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The item is faulty. The flash drive states 256GB but what you might get is 8GB. I tried copying 19GB of a movie to this flash drive and the operation always failed. Please verify the drive actually has 256GB capacity after you purchase it.

    No, I would not recommend this to a friend
  • Rated 5 out of 5 stars

    Perfect for Microsoft Surface Pros

    |
    |
    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Perfect for Microsoft Surface Pros Does not stick out and get damaged like other ones might.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Disappointed

    |
    |
    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Started overheating and disconnecting from Windows after a couple of weeks use.

    No, I would not recommend this to a friend
    • Brand response from SanDisk Team
      Posted .

      Thanks for sharing your feedback. The behavior you described can sometimes be related to the file system of the drive or file type of the file being transferred. We recommend reformatting the drive in exFAT(be sure to backup your data first). You may follow the steps mentioned in this article: https://support-en.sandisk.com/app/answers/detailweb/a_id/20821. If the issue continues, please get in touch with the support team for further assistance by opening a ticket at (https://support-en.sandisk.com/app/askweb) SanDiskConnections

  • Rated 5 out of 5 stars

    Highly recommend it

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I've been copying files to and from this drive without experiencing any problems.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Very small and out of the way

    |
    |
    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Get for laptops and smaller PCs. Would definitely get this product again.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Broke after one month of use

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This worked great at first and then one day it just stopped. It's not showing up on my Mac or my PC. I've tried multiple recovery programs and it's no longer detectable. I would expect something like this to happen with a much smaller USB but with a 256 GB 3.1 that cost $$$ this shouldn't happen. According to Best Buy it's no longer returnable.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Unauthorized Bitlocker lockup.

    |
    |
    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Windows 11 locked up this drive with Bitlocker without asking me. I can't get my files out of it now. I attempted to use the drive during an SSD upgrade. Microsoft's recommended fixes did not work either.

    No, I would not recommend this to a friend