Lexar D40E Dual Type-C Flash Drive 128GB
- Memory Storage Capacity: 128 GB
- Hardware Interface: USB 3.2 Gen 1
- Hardware Connectivity Technology: USB Type C
- Number of Packs: 1
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A convenient dual-connector drive for cross-device transfers, worth owning even though its real-world speed can run below the rated peak.
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ASIN: B0DH1MKVQVModel: D40ECategory: USB Flash Drives
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Overview
A 128GB flash drive with both USB-C and USB-A connectors on a swiveling metal body, rated up to 100MB/s, with optional 256-bit AES encryption software for private files.
Buyers reached for this mainly to bridge older USB-A laptops with newer USB-C phones and tablets in one drive. One benchmark-focused reviewer measured real write speeds well under the rated 100MB/s peak, a useful reminder that the advertised figure is a ceiling rather than a typical result.
- Dual USB-C and USB-A connectors
- Rated up to 100MB/s
- Durable metal enclosure
- 256-bit AES encryption option
Who it's for
Suits anyone regularly moving files between a phone, tablet and a mix of USB-C and USB-A computers without carrying adapters. Less suited to buyers who need guaranteed near-100MB/s speeds for large transfers.
Pros and cons
- Works across phone, tablet and computer without adapters
- Compact metal body that feels durable
- Swivel design avoids a cap that can be lost
- Optional 256-bit AES encryption for private files
- No cover, so one connector is always exposed
- Measured write speeds ran below the rated 100MB/s in one benchmark
Performance notes
The body swivels to expose either the USB-A or USB-C end, so there is no cap to lose track of. One reviewer's file-write benchmark averaged well under the rated 100MB/s peak, with speeds falling further on some file sizes. The bundled security software adds 256-bit AES encryption for anyone storing sensitive files.
Specifications
| Brand | Lexar |
|---|---|
| Model | D40E |
| Dimensions & fit | |
| Item Weight | 0.06 pounds |
| Item Dimensions D x W x H | 0.5 × 2.8 × 0.5 inches |
| Capacity & performance | |
| Memory Storage Capacity | 128 GBhigher than 53% of 88 usb flash drives |
| Write Speed | 80 MB/s |
| Construction & materials | |
| Color | Champagne Silver |
| Compatibility & installation | |
| Hardware Interface | USB 3.2 Gen 1 |
| Hardware Connectivity Technology | USB Type C |
| Connectivity Technology | USB |
| Compatible Devices | Laptop, Mac, PC, Smartphone, Tablet |
| Compatible Phone Models | USB Type-C Smartphones |
| Included components | |
| Number of Packs | 1 |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | 3 years |
| Other details | |
| Flash Memory Type | USB |
| Number of Items | 1 |
| Mfr Part Number | LJDD40E128G-BNSNG |
| Additional Features | Dual USB Connectors |
| Item Type Name | USB Flash Drive |
Closest rivals on specs
SanDisk Ultra Flair USB 3.0 Flash Drive 128GB- Item Weight 0.06 vs 0.07 pounds (-14%)
SanDisk Ultra Fit USB 3.2 Flash Drive 128GB- Item Weight 0.06 vs 0.04 pounds (+50%)
PNY Turbo Attache 3 USB 3.0 Flash Drive 128GB 2 Pack- Item Weight 0.06 vs 0.04 pounds (+50%)
Frequently asked questions
Does the Lexar D40E work without installing extra software?
Yes, it works plug and play for file transfer; the encryption software is only needed if you want AES protection.
Is the Lexar D40E's 100MB/s speed guaranteed?
That figure is a rated peak; one buyer's own benchmark measured real write speeds well under it.
Does the D40E come with a cap to cover the connectors?
No, the swivel design leaves one connector exposed at a time rather than using a removable cap.