Amazon Basics Retractable USB 3.1 Flash Drive 256GB
- 256 GB capacity
- Up to 130 MB/s read, 30 MB/s write
- USB Type-A connector, USB 3.0 and 2.0 interface
- Retractable design
- 9.07 g, black
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A large-capacity flash drive with a retractable connector for moving photos and videos. Write speed is far below read speed, so large copies onto the drive take longer.
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ASIN: B0B61DGG18Model: LS21USB256G1Category: USB Flash Drives
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Overview
A laptop bag or desk drawer is where this black flash drive lives. A retractable design pulls the Type-A connector into the body, so no cap is needed to protect it.
Large capacity and light weight cover everyday photo and video backups. The quoted transfer figure applies to reading only, and the listing shows the interface standard in two different ways.
Who it's for
A user who wants big storage on a keychain-sized stick for moving files between desktops and laptops with standard ports. Those who record large videos straight onto the drive should check the slower write rate.
Pros and cons
- Large storage in a light body
- Retractable connector, no cap
- Fast stated read speed
- Works with older USB ports
- Write speed much slower than read
- Type-A connector only
- Interface listed as two standards
- Warranty not listed
Performance notes
Copying files off the drive runs near the stated read speed on a fast port, while copying onto it is limited by the lower write rate. Older ports cap both directions below the headline figure. The retractable mechanism has moving parts, so it is worth keeping clear of lint.
Specifications
| Brand | Amazon Basics |
|---|---|
| Model | LS21USB256G1 |
| Dimensions & fit | |
| Item weight | 9.07 g |
| Capacity & performance | |
| Memory Storage Capacity | 256 GBhigher than 75% of 88 usb flash drives |
| Read Speed | 130 MB/s |
| Write Speed | 30 MB/s |
| Construction & materials | |
| Color | Black |
| Compatibility & installation | |
| Hardware Interface | USB 2.0, USB 3.0 (title: USB 3.1) |
| Hardware Connectivity Technology | USB Type-A |
| Compatible Devices | USB-enabled devices |
| Included components | |
| Unit Count | 1 Count |
| Other details | |
| Additional Features | Lightweight, retractable |
| Mfr Part Number | LS21USB256G1 |
Closest rivals on specs
Samsung Type-C USB Flash Drive 256GB- Item Weight 0.02 vs 0.01 pounds (+100%)
SanDisk Ultra Dual Drive USB Type-C 128GB- Memory Storage Capacity 256 vs 128 GB (+100%)
JOIOT Dual USB-C and USB-A Flash Drive 128GB- Memory Storage Capacity 256 vs 128 GB (+100%)
Frequently asked questions
Is the Amazon Basics 256GB flash drive a USB-C drive?
No. The connector is listed as USB Type-A, so a USB-C only laptop needs an adapter, which the listing does not mention.
Which USB version does it use?
The title says USB 3.1, while the spec list shows USB 2.0 and USB 3.0. Speeds depend on the port it is plugged into.
Why is the write speed lower than the read speed?
The listing gives 30 MB/s for writing and 130 MB/s for reading, so copying onto the drive is slower than copying off it.