What is the real space available for the user? i Need at least 230GB free...

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.

Anyone had this for 3-5 mos or longer and still happy with it? Still working well? Thanks in advance!

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

Does it read as a hard disk drive or removable storage when plugged in?

Removable storage. Unless you use it as a Windows To Go drive, when it would be read as a hard disk drive.

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SanDisk Ultra CZ48 256GB USB 3.0 Flash Drive (SDCZ48-256G-U46)

SanDisk Ultra CZ48 256GB USB 3.0 Flash Drive (SDCZ48-256G-U46)

Product ID: 253648455

Details

Brand
SanDisk
Hardware interface
USB 3.0
Memory storage capacity
256 GB
Special features
Lightweight
Writing speed
80 MB/s

⚡Up to 10x faster transfers

🔒Secure file encryption

☁️1 year SanDisk Cloud storage

258.35 DT

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Description

⚡ Store Fast, Secure, and Everywhere — Don’t Get Left Behind!

ROCK SOLID SECURITY - Protect your sensitive files with SanDisk Secure Access encryption and password protection—privacy that keeps you in control 🔒
BLAZING USB 3 0 SPEEDS - Transfer full-length movies in under 40 seconds with up to 100MB/s read and 80MB/s write speeds—because your time is money ⚡
RESCUE PRO SUBSCRIPTION - Recover lost or corrupted files with a full year of Rescue PRO software—because accidents happen, but data loss shouldn’t
DUAL STORAGE FLEXIBILITY - Seamlessly switch between 256GB on-the-go USB storage and 50GB cloud backup for ultimate file freedom ☁️
CROSS DEVICE COMPATIBILITY - Works effortlessly with PCs, Macs, tablets, TVs, and car stereos—your data, wherever you need it

The SanDisk Ultra CZ48 256GB USB 3.0 Flash Drive delivers high-speed data transfers up to 10x faster than USB 2.0, with read speeds up to 100MB/s and write speeds up to 80MB/s. It offers robust file encryption and password protection via SanDisk Secure Access software, plus a one-year subscription to Rescue PRO for file recovery. Paired with 50GB of SanDisk Cloud storage, it provides flexible, cross-device storage solutions compatible with PCs, Macs, tablets, and more, all in a lightweight, portable design.

Specifications

ASIN	B00YFI1A66
Additional Features	Lightweight
Best Sellers Rank	#6,660 in Computers ( See Top 100 in Computers ) #87 in USB Flash Drives
Brand	SanDisk
Built-In Media	Flash Drive
Color	256GB
Compatible Devices	Computers, Laptops
Compatible Phone Models	Laptop,Personal Computer
Connectivity Technology	USB
Customer Reviews	4.6 out of 5 stars 20,548 Reviews
EU Spare Part Availability Duration	1 Years
Flash Memory Type	USB flash drive
Flash Memory Video Speed Class	V30
Global Trade Identification Number	00619659125974, 07195003036446
Hardware Connectivity Technology	USB Type A
Hardware Interface	USB 3.0
Hardware interface	USB 3.0
Item Dimensions D x W x H	6.1D x 7.5W x 3.3H centimeters
Item Type Name	SanDisk Cruzer Ultra 256GB USB 3.0 Flash Drive SDCZ48-256G-U46 up to 100MB/s
Manufacturer	Sandisk
Memory Storage Capacity	256 GB
Memory storage capacity	256 GB
Mfr Part Number	SDCZ48-256G-U46
Model Name	SDCZ48-256G-U46
Model Number	SDCZ48-256G-U46
Read Speed	100
Reading speed	100
Special features	Lightweight
UPC	619659125974
Unit Count	1 Count
Warranty Description	2 year
Write Speed	80 MB/s
Writing speed	80 MB/s

Reviews

S**.

SanDisk as SanDisk

All good, didn't check yet

8.03.2020

M**D

Bigger storage in old design and spec

Operates at full speed, heats up after a minute of writing and then speed is reduced from 100MB/s to hovering 25MB/s. I only suggest it for the price and for making a occasional backup but the speed really puts it down.

24.12.2025

N**A

Una soluzione di archiviazione portatile affidabile e conveniente

La SanDisk 256GB Ultra Unità flash USB 3.0 è una soluzione di archiviazione portatile affidabile e conveniente che offre una buona combinazione di capacità, prestazioni e prezzo. Design e costruzione L'unità flash SanDisk Ultra 256GB ha un design semplice ma elegante. È disponibile in una varietà di colori, tra cui nero, rosso, blu e oro. L'unità è realizzata in plastica resistente e ha un'estremità metallica che offre un po' di protezione in più. L'unità flash è piccola e portatile, misura solo 2,2 x 0,7 x 0,3 pollici (5,6 x 1,8 x 0,8 cm). Capacità e prestazioni L'unità flash SanDisk Ultra 256GB offre una capacità di 256 GB, che è sufficiente per archiviare una grande quantità di dati, tra cui foto, video, musica e file. L'unità supporta velocità di trasferimento USB 3.0 fino a 150 MB/s, che è abbastanza veloce per trasferire file di grandi dimensioni in modo rapido e semplice. Compatibilità L'unità flash SanDisk Ultra 256GB è compatibile con una vasta gamma di dispositivi, inclusi computer, laptop, tablet, smartphone e fotocamere. L'unità è dotata di un connettore USB-A che può essere collegato a qualsiasi porta USB standard. Software L'unità flash SanDisk Ultra 256GB viene fornita con un software gratuito chiamato SanDisk SecureAccess. Questo software ti consente di proteggere i tuoi dati con una password. Conclusioni La SanDisk 256GB Ultra Unità flash USB 3.0 è una soluzione di archiviazione portatile affidabile e conveniente che offre una buona combinazione di capacità, prestazioni e prezzo. È una buona scelta per chiunque stia cercando un modo per archiviare e trasferire file di grandi dimensioni. Pro: Design semplice ma elegante Realizzata in plastica resistente Estremità metallica per la protezione Piccola e portatile Capacità di 256 GB Velocità di trasferimento USB 3.0 fino a 150 MB/s Ampia compatibilità Software SanDisk SecureAccess incluso Contro: Nessun contro evidente

24.01.2024

T**.

RAAPIDE ET EFFICACE

TRES BON PRODUIT

29.06.2026

I**N

Holds more than enough memory

Good memory size and storage

26.10.2024

P**M

Bra

Funkar bra

18.07.2026

A**M

Nice

21.12.2025

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258.35 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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