---
product_id: 16083534
title: "SanDisk 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-U46 Black"
brand: "sandisk"
price: "€ 52.31"
currency: EUR
in_stock: true
reviews_count: 13
category: "Sandisk"
url: https://www.desertcart.ie/products/16083534-sandisk-256gb-ultra-usb-3-0-flash-drive-sdcz48-256g
store_origin: IE
region: Ireland
---

# 100 MB/s read speed 256GB storage capacity Password protection security SanDisk 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-U46 Black

**Brand:** sandisk
**Price:** € 52.31
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock speed and security in your pocket — because waiting is so last decade!

## Quick Answers

- **What is this?** SanDisk 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-U46 Black by sandisk
- **How much does it cost?** € 52.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/16083534-sandisk-256gb-ultra-usb-3-0-flash-drive-sdcz48-256g)

## Best For

- sandisk enthusiasts

## Why This Product

- Trusted sandisk brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Secure Your Secrets:** Built-in password protection keeps your private files truly private
- • **Trusted Reliability:** Backed by 5 years of SanDisk quality and a 4.7-star rating from 130K+ users
- • **Massive 256GB Storage:** Carry your entire digital life in a sleek, pocket-sized drive
- • **Blazing Fast Transfers:** USB 3.0 speeds up to 10x faster than USB 2.0 for instant file moves
- • **Sleek & Durable Design:** Modern black finish with compact, sturdy build for on-the-go professionals

## Overview

The SanDisk 256GB Ultra USB 3.0 Flash Drive delivers lightning-fast 100 MB/s read speeds and ample storage for all your files. Its sleek, durable design fits perfectly in your pocket, while password protection ensures your data stays secure. Trusted globally with over 130,000 glowing reviews and a 5-year warranty, this flash drive is the ultimate tool for fast, reliable, and secure data transfer.

## Description

Step up to high‐speed USB 3. 0 and transfer your videos, photos and files up to ten times faster than standard USB 2. 0 drives. SanDisk Ultra USB 3. 0 Flash Drive takes the wait out of moving, sharing or backing up big files-now you can transfer a full‐length movie from your laptop to your flash drive in way less than a minute. Password protection lets you keep your private files private2 and still generously share with family and friends. And, with a sleek, sturdy SanDisk Ultra USB 3. 0 Flash Drive in your pocket, you won't need an Internet connection to access those photos and videos anyplace and anytime you want. For more than 25 years, SanDisk has been known for quality and reliability all around the world. That's why your flash drive comes with a five‐year

Review: Flash Drive / USB Memory - This flash memory is fast, reliable, and easy to use. It transfers files quickly and stores data securely. The design is compact and durable, making it easy to carry anywhere. Overall, it is a great choice for backing up important files or transferring data between devices. Excellent value for the price.
Review: Good product - Good one to have.

## Features

- You can be confident in the good quality, performance and reliability of every SanDisk Product
- Unique, sleek design for the modern home
- With these speeds you can be sure that every transfer or save will end faster than ever before
- Read Speed up to 100 MB/s2

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00YFI1A66 |
| Best Sellers Rank | #31 in USB Flash Drives |
| Color | black |
| Connectivity Technology | USB |
| Customer Reviews | 4.7 4.7 out of 5 stars (131,037) |
| Date First Available | May 30, 2015 |
| Flash Memory Size | 256 |
| Flash Memory Type | USB flash drive |
| Global Trade Identification Number | 00619659125974, 07195003036446 |
| Hardware Connectivity Technology | USB Type A |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 0.42 x 0.87 x 2.21 inches |
| Item Weight | 0.48 ounces |
| Item model number | SDCZ48-256G-U46 |
| Manufacturer | Western Digital Technologies Inc. |
| Model Name | 256GB Ultra Fit USB 3.0 Flash Drive 100MB/s |
| Number of Processors | 1 |
| Product Dimensions | 0.42 x 0.87 x 2.21 inches |
| RAM | 256 GB |
| Read Speed | 100 |
| UPC | 619659125974 |

## Product Details

- **Brand:** Sandisk
- **Hardware Interface:** USB 3.0
- **Memory Storage Capacity:** 256 GB
- **Special Feature:** Lightweight
- **Write Speed:** 40MB/s

## Images

![SanDisk 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-U46 Black - Image 1](https://m.media-amazon.com/images/I/41Xtog9u8SL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: What is the real space available for the user? i Need at least 230GB free...**
A: On mine, after reformatting to Apple's HFS+ journaled file system, I had 248,125,304,832 free bytes available.  The raw capacity was 248,437,014,528 bytes.

**Q: Does this flash drive have a slider to retract the USB port into the casing?**
A: Yes

**Q: Anyone had this for 3-5 mos or longer and still happy with it?  Still working well? Thanks in advance!**
A: Works perfectly and fast.  Nice even loading between 21MBPS & 31 MBPS. I t settles in evenly somewhere between these numbers and loads in almost the exact number all across the (in my case) music until they are are all loaded.  In my case about 28MBPS. I use NTFS file format. Perhaps exFat may be a little faster of slower, I haven't tried it as It was fine and I didn't want to format the drive just to find out. I did a fast format at the start to leave the drive completely empty as I didn't  need locked security. I am 'assuming' it works as advertised. Playback was flawless. Function fallowed fit which was just right from Rxer, to car, to PC. No sloppiness or 'collapsing' when inserting drive. I've found all Sandisk's to be well made, and most important, reliable, for years but this specific model has very little heat build up and 'all in all' is the best I've ever used so far. The exact opposite of a certain brand starting with a 'P' which runs hot and is guaranteed to eventually fail and the loss of about 5600 songs can be devastating. Getting the songs to run in the exact same order as recorded on the CD is a continuous problem and I haven't figured out yet to set that and all USB's seem to do it. I'm fairly sure there is a way but I haven't found the exact way to do  this  on any brand. Suggested solutions gratefully appreciated. Aside that, this is a winner and at $11.99 new,  a very good deal. A year+  so far and no problems, Paul

**Q: Does it read as a hard disk drive or removable storage when plugged in?**
A: Removable storage. Unless you use it as a Windows To Go drive, when it would be read as a hard disk drive.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Flash Drive / USB Memory
*by Y***Z on January 15, 2026*

This flash memory is fast, reliable, and easy to use. It transfers files quickly and stores data securely. The design is compact and durable, making it easy to carry anywhere. Overall, it is a great choice for backing up important files or transferring data between devices. Excellent value for the price.

### ⭐⭐⭐⭐⭐ Good product
*by W***Z on February 22, 2026*

Good one to have.

### ⭐⭐⭐⭐⭐ Lots of Storage
*by S***E on December 28, 2025*

Great price for SanDisk that works perfectly.

## Frequently Bought Together

- SanDisk 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-U46 Black
- SABRENT 4-Port USB 3.0 Hub with Individual LED Power Switches - Slim, Portable Design - 2 Ft Cable - Fast Data Transfer - Compatible with Mac & PC (HB-UM43)
- Logitech Touch Keyboard K400

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**Shop now:** [https://www.desertcart.ie/products/16083534-sandisk-256gb-ultra-usb-3-0-flash-drive-sdcz48-256g](https://www.desertcart.ie/products/16083534-sandisk-256gb-ultra-usb-3-0-flash-drive-sdcz48-256g)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-02*