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SANDISK 512GB Ultra USB 3.0 Flash Drive - SDCZ48-512G-G46, Black competes with other External Storage products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full External Storage category for alternatives.

Sandisk

512GB Ultra USB 3.0 Flash Drive - SDCZ48-512G-G46, Black

Name: SANDISK 512GB Ultra USB 3.0 Flash Drive - SDCZ48-512G-G46, Black
Brand: Sandisk
SKU: B083ZLJ5MG
Price: 74.99 USD
Availability: InStock

By SpecPicks Editorial · Verified 2026-08-21

$74.99

Buy on Amazon — $74.99 Compare to similar external storage

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

Bottom line: The 512GB Ultra USB 3.0 Flash Drive - SDCZ48-512G-G46, Black is a niche pick — read recent reviews before buying in the external storage category, priced around $74.99. Read recent reviews carefully before committing.

The SanDisk 512GB Ultra USB 3.0 Flash Drive (SDCZ48-512G-G46) moves large files at read speeds up to 130MB/s, which SanDisk rates as up to 10x faster than the 4MB/s typical of standard USB 2.0 drives. That gap is the whole point of this drive: a full-length movie copies from your laptop to the drive in under a minute, so backing up a photo library or handing off a video project stops being a coffee-break task. You need a USB 3.0 port to hit those speeds, though the drive stays backward compatible with USB 2.0 ports at slower rates. At 512GB, this SanDisk Ultra holds an entire media archive…

SpecPicks Verdict

SpecPicks classifies SANDISK 512GB Ultra USB 3.0 Flash Drive - SDCZ48-512G-G46, Black as a niche pick — read recent reviews before buying in the external storage category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Sandisk's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Backward compatible with USB 2.0
✓ Backed by Sandisk's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

Transfer speeds up to 10x faster than standard USB 2.0 drives (4MB/s); up to 130MB/s read speed; USB 3.0 port required. Based on internal testing; performance may be lower depending upon host device. 1MB=1,000,000 bytes
Backward compatible with USB 2.0
Secure file encryption and password protection(2)

Full Specifications

Brand	Sandisk
Color	Black
Weight	512g
Model Name	SDCZ48-512G-G46
Read Speed	130 megabytes_per_second
Write Speed	40 MB per second
Connectivity	USB
Model Number	SDCZ48-512G-G46
Mfr Part Number	SDCZ48-512G-G46
Special Feature	Encrypted
Flash Memory Type	USB
Compatible Devices	Laptop
Hardware Interface	USB 3.0
Additional Features	Encrypted

Ready to buy?

SANDISK 512GB Ultra USB 3.0 Flash Drive - SDCZ48-512G-G46, Black is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.