The simple way to add extra, high-speed storage to your device! The SanDisk Ultra Fit USB 3.1 Flash Drive delivers performance that allows you to move a full-length movie up to 15x faster than with standard USB 2.0 drives.(1) Plus, thanks to its compact, streamlined design, you can plug it in and leave it in. | *1GB=1,000,000,000 bytes. Actual user storage less | (1)Write to drive up to 15X faster than standard USB 2.0 drives (4MB/s); up to 130MB/s read speed. USB 3.1 Gen 1 or USB 3.0 port required. Based on internal testing; performance may be lower depending on host device. 1MB=1,000,000 bytes | (2)Based on 1.2GB MPEG-4 video transfer with USB 3.1 Gen 1 or USB 3.0 host device. Results may vary based on host device, file attributes and other factors. | (3)Password protection uses 128-bit AES encryption and is supported by Windows 7, Windows 8, Windows 10 and macOS v10.9+ (Software download required for Mac, visit the official SanDisk website for SecureAccess details) | (4)Registration required; terms and conditions apply. | (5)Visit the official SanDisk website for warranty details. model_number: SDCZ430-512G-G46 part_number: SDCZ430-512G-G46
Capacity is great. Small profile is great. That claimed 130MB is read speed. Please note... write speeds state UP TO 15X over USB 2 speeds. Key words here are UP TO.
I use this device to store flac music files for playback in my car. I have plugged this drive into USB 2, 3 & 3.1 ports for writing purposes. I have seen extremely marginal performance differences between USB 3 & 3.1 (fluctuates between 35 - 55 MB when writing anywhere from 200MB - 2GB at a time). On a USB 2 port I get speeds around 20 MB on average. I will post test results and adjust figures as needed later as I am going from memory at this point.
On another point, the frame of this no longer appears to be made of metal. I would say it is made of some type of composite material. I believe this was done with a purpose on the manufacturer to alleviate the heat issues with the previous model (which I also own) While it still gets warm while writing, it no longer gets hot to the touch like the previous model did. The heat dissipates much quicker. Given that, I do worry about the longevity and duability of this device should it have to be used and plugged in frequently in many devices.
Overall, it serves my purposes. Write speeds could be better and durability could be an issue. Hence, my reason for three stars.
**********Edit**********
I have included Crystalmark tests (1 @ 500MB in size for USB 2 & 3). I did 5 tests while having it plugged into a USB 3.1 gen 2 port (1 of each @ 500MB, 1GB, 2GB, 4GB & 8GB). Speeds start dropping down the larger the test file was. Speed breakdown for the images is as follows for those that were wondering: USB 2.0 image is the read speed of 40.22 & write speed of 17.01 USB 3.0 image is the read speed of 126.2 & write speed of 50.41 USB 3.1 gen 2 images are the remaining 5 images as well as the windows copying images
Just for a test, I copied over an approximately 4GB video file to the drive via the USB 3.1 gen 2 port (see the windows copying images). At the halfway point of the file, the speed starts to drop off and never recovers. Looks like the video file maintained a good 64 MB until the halfway mark.
3.0 颗星,最多 5 颗星
Serves its purpose. 256GB model
2018年1月24日 在美国审核
Capacity is great. Small profile is great. That claimed 130MB is read speed. Please note... write speeds state UP TO 15X over USB 2 speeds. Key words here are UP TO.
I use this device to store flac music files for playback in my car. I have plugged this drive into USB 2, 3 & 3.1 ports for writing purposes. I have seen extremely marginal performance differences between USB 3 & 3.1 (fluctuates between 35 - 55 MB when writing anywhere from 200MB - 2GB at a time). On a USB 2 port I get speeds around 20 MB on average. I will post test results and adjust figures as needed later as I am going from memory at this point.
On another point, the frame of this no longer appears to be made of metal. I would say it is made of some type of composite material. I believe this was done with a purpose on the manufacturer to alleviate the heat issues with the previous model (which I also own) While it still gets warm while writing, it no longer gets hot to the touch like the previous model did. The heat dissipates much quicker. Given that, I do worry about the longevity and duability of this device should it have to be used and plugged in frequently in many devices.
Overall, it serves my purposes. Write speeds could be better and durability could be an issue. Hence, my reason for three stars.
**********Edit**********
I have included Crystalmark tests (1 @ 500MB in size for USB 2 & 3). I did 5 tests while having it plugged into a USB 3.1 gen 2 port (1 of each @ 500MB, 1GB, 2GB, 4GB & 8GB). Speeds start dropping down the larger the test file was. Speed breakdown for the images is as follows for those that were wondering: USB 2.0 image is the read speed of 40.22 & write speed of 17.01 USB 3.0 image is the read speed of 126.2 & write speed of 50.41 USB 3.1 gen 2 images are the remaining 5 images as well as the windows copying images
Just for a test, I copied over an approximately 4GB video file to the drive via the USB 3.1 gen 2 port (see the windows copying images). At the halfway point of the file, the speed starts to drop off and never recovers. Looks like the video file maintained a good 64 MB until the halfway mark.
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683 个人发现此评论有用
Paul K.
2.0 颗星,最多 5 颗星Not durable enough for every day transfer use.
2018年4月17日 - 已在美国亚马逊上发表
尺寸: 128GB已确认购买
The pros. Small form factor, and doesn't get super hot like the metal one. The cons. It is made out of paper thin plastic. I had it come apart inside of the only USB port my Surface pro has. It was quite the challenge to fish the piece out without damaging my device.
I would only recommend this if you plan to install it and leave it. If like me, you need a portable device to transfer files from machine to machine, look elsewhere.
2.0 颗星,最多 5 颗星
Not durable enough for every day transfer use.
2018年4月17日 在美国审核
The pros. Small form factor, and doesn't get super hot like the metal one. The cons. It is made out of paper thin plastic. I had it come apart inside of the only USB port my Surface pro has. It was quite the challenge to fish the piece out without damaging my device.
I would only recommend this if you plan to install it and leave it. If like me, you need a portable device to transfer files from machine to machine, look elsewhere.
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460 个人发现此评论有用
Gennaro M.
1.0 颗星,最多 5 颗星Still works...
2018年3月16日 - 已在美国亚马逊上发表
尺寸: 128GB已确认购买
Really wish it wasn't plastic. After constant use it started to crack, then broke in my laptop. I needed to fish the broken pieces out with a blade. I am sticking to metal drives from now on as I am noy satisfied with this.
Really wish it wasn't plastic. After constant use it started to crack, then broke in my laptop. I needed to fish the broken pieces out with a blade. I am sticking to metal drives from now on as I am noy satisfied with this.
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347 个人发现此评论有用
Vickie Buckner
2.0 颗星,最多 5 颗星Older model was better.
2018年5月16日 - 已在美国亚马逊上发表
尺寸: 256GB已确认购买
We've been using the previous model of these ultrafit drive for years as an easy way to add permanently-attached storage to MacBook Pros (all with USB 3.0+). Just plug it in, format it, and forget it. They always worked great and always performed well. We just ordered 3 of this new model (the 256GB) and noticed very slow write-speeds. Checking System profiler it's easy to see that the old model registered full-speed every time it is inserted, but this new model often reverts down to USB 2.0 speeds. We've tested all three drives and it's happening with all three of them. If we didn't desperately need the 256GB of storage in a tiny form-factor we would return all three of them. As it stands, the performance issue really won't be much of an issue (they mostly house lots of relatively small files), but if you will be relying on needing reliable USB 3.0 speeds you may want to look elsewhere.