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SanDisk 128GB Ultra Slider USB-C Flash Drive - 400MB/s Speed

Name: SanDisk 128GB Ultra Slider USB-C Flash Drive - 400MB/s Speed
Brand: Sandisk
SKU: B0CP64F9Y1
Price: 17.99 USD
Availability: InStock
Rating: 4.5 (1253 reviews)

4.5 (1,253 reviews)

Posted Apr 9, 2026Updated Apr 10, 2026

$17.99$22.98

22% OFFYou save $4.99

Get This Deal at Amazon

In StockPrice changed 22h ago

Is this a good deal?

Easily move files across your USB Type-C devices with a retractable USB Type-C connector.
Make room for more with up to 128GB of expansive storage space. (1GB=1,000,000,000 bytes. Actual user storage capacity less.)
Quickly transfer and access your files at read speeds of up to 400MB/s with USB 3.2 Gen 1 performance. (1MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors.)
Minimal, yet durable design with a retractable connector helps you avoid wear and tear.
Clip your drive to your favorite bag or keys with a convenient keyring hole.

Great Deal

This SanDisk flash drive is 26% off at $16.99. It offers fast USB-C file transfers with a retractable design. It's a solid pick for anyone with a modern laptop or phone.

What we like

Fast 400MB/s read speeds for quick file transfers
Retractable USB-C connector protects the port
Compact and durable plastic build with a keyring hole
Good value for a well-known brand at this price

Watch out for

Write speeds are slower than the advertised read speed
The plastic body can feel a bit lightweight

Tip: Use it for moving large files like photos or videos, not for running programs directly from it.

Our Take

Best for: Students or professionals who need a simple, portable drive for modern USB-C laptops and phones.

The SanDisk Ultra Slider is a straightforward USB-C flash drive designed for easy file transfers between modern devices. Its main appeal is the combination of a familiar brand, a decent 128GB capacity, and the convenience of a retractable USB-C connector that tucks away neatly. The up to 400MB/s read speed is a standout feature for the price, meaning you can offload a phone's photo library or move a movie file relatively quickly. It's not without limitations. The write speed, which is what you experience when saving files to the drive, is noticeably slower and not specified by SanDisk. The build is a simple, lightweight plastic, which keeps it pocket-friendly but doesn't feel as premium as metal alternatives. The keyring hole is a practical touch for attaching it to a bag. At this sale price, it's a very sensible buy. You're paying for reliable, no-fuss storage from a trusted name. It won't win any speed records for professional work, but for general backup and file shuffling for students or remote workers, it hits a great balance of performance, portability, and price.

Price Analysis

At $16.99, this is a 26% discount from its typical $22.97 price. The 90-day average is around $20.78, and the 180-day average is $19.33, making the current price one of the better deals seen recently. It's a strong price for a 128GB USB-C drive from SanDisk.

Common Questions

Does this work with a regular USB-A port?

No, this model has only a USB-C connector. You would need a separate adapter to use it with a standard USB-A port.

What is the actual write speed?

SanDisk only advertises the read speed (up to 400MB/s). Real-world write speeds are typically much slower, often in the range of 50-150MB/s for large files.

Is it compatible with Android phones?

Yes, it will work with Android phones that support USB On-The-Go (OTG) for file transfers, provided your phone has a USB-C port.