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Sandisk

SANDISK 128GB Ultra Flair USB 3.0 Flash Drive

USB Flash Drive

4.6/ 5 on Amazon210,565Amazon ratings10,000+bought last month2.7ProductDome score

Better rated than 68%
More reviewed than 95%

Limited evidenceUpdated 8 days agoAmazon data + ProductDome analysis · methodology

Best forYou want a quick, sturdy 128GB drive for moving files between a work and home computer

A fast, durable USB 3.0 flash drive for everyday file transfer, with optional password protection as a bonus rather than a security guarantee.

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Sizes Available

1TB16GB32GB64GB64GB (10-Pack)128GB128GB (10-Pack)128GB (Pack of 3)256GB512GB

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ProductDome scorecard

How it ranks among the 19 usb flash drives we track

2.7/ 5ProductDome scoreLimited evidence

Owner satisfaction · 56% of scorecategory median 4.5★4.6

4.6★ across 210,565 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 6,633 ratings5.0

210,565 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score5.0

10,000+ bought on Amazon last month.

Data quality · 11% of score1.3

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 19 usb flash drives we track - how the scorecard works · full usb flash drives data report. Confidence: limited - incomplete product information.Updated 8 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

The SanDisk Ultra Flair is a 128GB USB 3.0 flash drive in a metal casing, rated for read speeds up to 150MB/s with built-in password protection for private files.

SanDisk pitches this as a faster, sturdier alternative to a basic plastic flash drive, aimed at moving large files rather than everyday USB 2.0 memory sticks. The password protection relies on 128-bit AES encryption through SanDisk's SecureAccess software, which Mac users need to download separately since it does not come preinstalled on the drive for that platform.

128GB capacity
Up to 150MB/s USB 3.0 read speed
Metal casing
128-bit AES password protection

Who it's for

Anyone who regularly copies large files between computers and wants a drive that survives being tossed in a bag will find the metal shell reassuring. It is not a fit for someone who needs certified hardware encryption for regulated or highly sensitive data.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out

Durable metal casing over plastic shells
USB 3.0 speeds well above USB 2.0 drives
Password protection option for private files
128GB fits large file collections

What to check first

Password protection needs separate software on Mac
Speed depends heavily on host device and port

Performance notes

Rated up to 150MB/s read speed over a USB 3.0 connection, which SanDisk says can move a 1.2GB video file in under 30 seconds on a compatible host. Actual speed depends on the USB port and computer used, and the password protection feature requires installing SanDisk's SecureAccess software, an extra step on Mac.

Specifications

Brand	Sandisk
Model	SDCZ73-128G-G46

How it compares

This product against the closest alternatives we track in usb flash drives.

Product	Amazon rating	Ratings	ProductDome score
SANDISK 128GB Ultra Flair USB 3.0 Flash DriveThis product	4.6 / 5	210,565	2.7 / 5
PNY 128GB Turbo Attaché 3 USB 3.0 Flash Drive 2-PackPNY	4.6 / 5	4,675	4.7 / 5
Samsung Type-C USB Flash Drive 256GBSamsung	4.5 / 5	17,700	4.7 / 5
SanDisk 64GB Ultra Dual Drive Go USB Type-C Flash DriveSanDisk	4.6 / 5	15,000	4.6 / 5
USB Flash Drive 32GBMaspen	4.5 / 5	4,670	4.6 / 5

Frequently asked

Questions about the Sandisk SDCZ73-128G-G46

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

Does the SanDisk Ultra Flair 128GB work on Mac?

Yes, and the password protection feature works on Mac OS X 10.9 and later, but it requires downloading SanDisk's SecureAccess software separately.

What read speed does this flash drive reach?

Up to 150MB/s over a USB 3.0 port, based on SanDisk's internal testing; actual speed varies by host device.

Is the SanDisk Ultra Flair encrypted by default?

No, password protection with 128-bit AES encryption is an optional feature turned on through SanDisk's software, not an always-on setting.