SanDisk SDCZ430-128G-I35 Ultra Fit 3.1 128GB USB Flash Drive (Black)

Awesome product.It's compact and feels so cute.I am using it till now (in 2025).Because of its size, it gains temperature a little higher.Overall I will recommend.

It's a small USB pendrive but very convenient to use. It takes less space and also the speed of uploading is good.

The speed is good but it throttles and the speed drops pretty frequently maybe due to the small size, But I use it to live boot linux for recovery purposes and it has served me well for so many years. I have plugged this in my laptop and its hardly noticeable just bc its so small...would recommend 100%

Must Buy , Best Quality Product

The SanDisk SDCZ430-128G-I35 Ultra Fit 3.1 128GB USB Flash Drive is a compact powerhouse that offers exceptional storage capacity and lightning-fast data transfer speeds. With its small form factor and impressive performance, this flash drive is a must-have for anyone looking for reliable and convenient portable storage.Let's start with the design. The Ultra Fit 3.1 is incredibly compact, making it the perfect choice for those who value portability. Its sleek and minimalist design allows it to fit seamlessly into USB ports without obstructing neighboring ports or protruding from your device. It's so small that you can leave it plugged in as semi-permanent storage without worrying about it getting in the way.When it comes to performance, the Ultra Fit 3.1 does not disappoint. With USB 3.1 technology, this flash drive offers blazing-fast transfer speeds that will significantly reduce file transfer times. Whether you're transferring large multimedia files or numerous documents, you can expect swift and efficient data transfers. The read and write speeds of this drive are truly impressive, allowing you to quickly access your files and save them with ease.The storage capacity of 128GB is ample for storing a wide range of files, including documents, photos, videos, and even high-resolution media. It provides enough space to serve as a portable backup solution or to carry your important files wherever you go. Plus, with SanDisk's reputation for reliability, you can trust that your data will be safe and secure.Another noteworthy feature of the Ultra Fit 3.1 is its compatibility. It works seamlessly with both USB 3.0 and USB 2.0 ports, ensuring that you can use it with a variety of devices, including laptops, desktops, gaming consoles, and even smart TVs. This versatility makes it an excellent choice for users with different devices and operating systems.Durability is also a strong suit of the SanDisk Ultra Fit 3.1. The drive is built to withstand everyday wear and tear, with a sturdy construction that can handle the rigors of daily use. The retractable design protects the USB connector when not in use, preventing it from getting damaged or collecting dust.In conclusion, the SanDisk SDCZ430-128G-I35 Ultra Fit 3.1 128GB USB Flash Drive is a standout performer in the world of portable storage. Its compact size, impressive performance, and generous storage capacity make it a reliable companion for those constantly on the move. Whether you need to transfer files quickly or carry important data with you, this flash drive offers the perfect balance of speed, convenience, and durability.

I have purchased 3 of these SanDisk ultra fit flash drives the recent one being yesterday. It is of 128gb capacity. After rigorous read/write/erase/format...repeat for the last 10-12 hrs let me sumnarise my observations for Informed Purchase decision by other fellow customers.Pros:1. Tiny size... that's it. Ultra small. Zero footprint.Cons:1. Full plastic build. Gets Excessive Hot when writing for more than 10 mins. I mean literally HOT!!2. Actual size of flash drive is 114.6gb. SanDisk should pay heed as 13.4gb of reserved space is too much.3. Pack mentions this drive to be usb 3.1 gen1, but my computer detects it to usb3.2 gen1. Refer my attached pics.4. I had purchased this 128gb variant to store some large Hi-Res audio files. My Yamaha receiver(reads FAT16 & FAT32 pendrives) didn't recognise this drive as it is an exFAT file system. Now the tricky part is windows cannot format exFAT files larger than 32gb to FAT32 as the OS recognises the file system more than 32gb as exFAT or NTFS only. So my purpose of getting this 128gb drive to copy and hear my DSD and FLAC files was getting defeated.Since I got a little bit of knowledge of MS-DOS, tried formatting this drive by cmd prompt using disk partition, selecting and cleaning the disk and changing the partition to GPT. No luck! Repeated the same process now converting the partition back to MBR. Still I was unable to convert the exFAT file system to FAT32.No where in the product description it was mentioned to be ab exFAT file system. My previous 2 SanDisk ultra fit pen drives were 32gb and they were both FAT32 by default.Ultimately I downloaded a partitioning tool and was able to alter the FS. Bingo!4. Write speed is below par. Don't expect anything above 25MB/s. I copied 20 files of avg 5gb size and got an average write speed of 17-18 MB/s.5. I Will not buy SanDisk drives in future this is one promise I made to myself today.Hope my observations help you in your purchase of pendrives.All of you take care👍

Good product.

Original branded product quality