We recently spent some time with the Lexar D400, and honestly, it strikes a pretty good balance between speed, portability, and compatibility. The dual USB-C and USB-A connectors made it simple to shuffle files between our newer gear and the old faithfuls—no adapters needed. That metal shell? Feels solid in the hand, and the swivel cover clicks in with a bit of authority, which is reassuring when you toss it in a bag.
- Dual connectors with USB Type-C and USB Type-A ports
- Transfer your files with high-speed USB 3.2 Gen 1 performance
- Features a stylish metal housing and swivel design for added protection
In day-to-day use, transfer speeds were consistently faster than the old USB 2.0 drives we’ve still got lying around. The small size made it pocket-friendly, though honestly, if you’re rough with your keychain, you’ll see some wear. It’s not the absolute fastest drive out there, but for moving big files or doing backups, it got the job done without drama.
Overview: Lexar 128GB JumpDrive Dual Drive D400
The dual-connector design is practical—you can bounce between legacy USB-A and modern USB-C ports with zero hassle. The swivel cover is sturdy and snaps into place, so your connectors aren’t just dangling out there.
The metal body gives it a premium vibe, but it does pick up scratches if you’re careless. In our hands, it was quick for regular files, but transferring big video folders took a bit longer than we’d hoped.
Pros:
- Handy USB-A and USB-C in one
- Tough metal build with protective swivel
- Plays nice with various operating systems
Cons:
- Not the best for giant file transfers
- Finish can show its age with heavy use
Dual USB Type-C and Type-A Connectivity
Swapping files between old laptops and new gadgets was a breeze with both connectors. Type-C worked well with newer phones and ultrabooks, while Type-A covered the desktops and older hardware.
Switching ports is quick, though the swivel hinge is a bit stiff at first. That said, this flexibility saved us more than once when moving photos from a phone to a work PC.
Pros:
- Plays well with both old and new devices
- No adapters to keep track of
Cons:
- Swivel hinge is tight out of the box
- A bit bulkier than single-port drives
Fast Transfer Speeds
Transfers zipped along with the USB 3.2 connection. Large photo batches and videos copied over in a few minutes, making backups feel less like a chore.
Switching between ports didn’t seem to slow things down. Read speeds were steady, so opening files directly from the drive wasn’t a pain.
On the flip side, write speeds lagged behind reads, especially with really big files. It’s fine for average use, but if you’re moving massive datasets daily, you might want something faster.
Pros:
- Snappy read speeds
- Consistent performance on both ports
Cons:
- Write speed can drag on big jobs
- Not built for heavy, ongoing file writing
Durable Metal Housing and Swivel Design
Right away, the metal casing feels reassuring—no flex, no cheap plastic vibes. The finish hides fingerprints, and it takes a beating in a bag without looking too rough.
The swivel cover is smooth and stays put, so you’re not chasing a lost cap. But after a while, the arm might loosen up, so don’t go swinging it around too much.
Pros:
- Sturdy enough for daily use
- Swivel keeps ports covered, no cap to lose
Cons:
- Swivel joint might loosen with time
Advanced Data Security
Lexar’s built-in DataShield gives you a decent extra layer of security for sensitive files. Set a password, and your encrypted data’s protected if you misplace the drive.
Setup was straightforward, and the software’s not a headache to use. Just be aware that encrypted transfers are a little slower than unprotected ones.
Pros:
- Password-protected encryption
- Setup is simple
Cons:
- Large encrypted files transfer a bit slower
Broad Compatibility Across Devices
Moving files between a new laptop and an old desktop? No problem. The swivel connector makes switching ports painless.
Worked out of the box with Windows, macOS, and Android—no setup required. On iPhone 15, the USB-C port handled photo backups easily, though speed depends on the device.
One catch: really old hardware with slow USB ports will bottleneck performance. But for a mixed-device home or office, this flexibility is a lifesaver.
Real-World Usage Experience
Having both connectors was genuinely handy for bouncing files between old laptops and newer USB-C gear. The swivel cover clicks in place, so switching ports isn’t awkward.
Everyday transfers felt quick, but big 4K video files took their time. For example, a 13GB file took about 10 minutes—not bad for the occasional large transfer, but not something I’d want to do all day.
The metal body holds up well in a bag, but if you’re rough with your keychain, the swivel can loosen up. For desk-to-device use, it’s solid, but if you’re always on the go, just be a bit gentle.
Pros and Cons
After a fair bit of use, some strengths and a few annoyances stood out. It’s practical for daily tasks, but not perfect.
Pros
- Dual Connectors – Jumping between old and new devices was seamless, no adapters to misplace.
- Solid Build – Metal housing feels reassuring, and the swivel locks with a satisfying click.
- Good Speed for Large Files – Not lightning-fast, but quick enough for most big files.
- Cross-Platform Compatibility – No issues across Windows, macOS, and Android—super handy for mixed-device setups.
| Pro | Benefit |
|---|---|
| Dual USB-C & USB-A | Easy device compatibility |
| Metal swivel design | Protects connectors |
| Decent transfer speeds | Handles large files well |
| Multi-OS support | Works across devices |
Cons
- Not the Most Durable for Keychains – On keys, the swivel wears out quicker than we’d like.
- Speed Limitations – For huge data sets, it’s not as fast as top-tier USB 3.2 drives.
- Tight USB-C Fit – The connector’s snug—secure, but takes some effort to plug in and out.
| Con | Impact |
|---|---|
| Swivel wear over time | Less protection if damaged |
| Moderate top speed | Longer waits for huge transfers |
| Stiff USB-C connector | Can be harder to insert/remove |
It’s reliable for daily storage and transfers, but if you need something bombproof or blazing fast, weigh these trade-offs.
Customer Reviews
Most folks seem to appreciate the sturdy metal build and the smooth swivel. The connectors feel solid, and the dual USB‑C and USB‑A setup is super convenient. People like the transfer speeds for everyday stuff, but some wish it was faster with huge files.
A few users mention that keychain use can shorten its life. The USB‑C port is a bit tight—good for stability, but you’ll want to be careful plugging in.
Common feedback themes:
- Pros: Durable metal, flexible connections, dependable performance
- Cons: Not a speed demon for big transfers, keychain durability is iffy
Frequently Asked Questions
How does the Lexar JumpDrive Dual Drive D400 perform in speed tests?
Read speeds are quick for everyday tasks—opening big images or moving documents feels snappy. The advertised 130MB/s read speed seems legit under normal use, but write speeds are definitely slower. Large video transfers take longer than on pricier drives, but it’s still fine for casual use.
What are the main features of the Lexar JumpDrive Dual Drive D400?
The headline feature is really the dual USB-C and USB-A connectors—it just makes life easier when moving files between old laptops and new phones. The metal swivel housing feels solid and offers decent protection, though it can get scratched up if you’re not careful. The Lexar DataShield software adds optional security if you need to lock down sensitive files.
Can the Lexar JumpDrive Dual Drive D400 be used with both USB-C and USB-A ports?
Yep. We flipped between USB-C on a phone and USB-A on a desktop without fuss. The connectors click in securely, so you don’t have to worry about them wobbling. Just remember, you’ll need enough space around the port for the swivel to rotate.
Is the Lexar JumpDrive Dual Drive D400 compatible with iPhone devices?
Works with newer iPhones that have a USB-C port (like iPhone 15). We plugged it straight in—no adapter needed—and transfers were smooth. For older iPhones with Lightning, you’ll need a separate adapter.
What is the price range for the Lexar JumpDrive Dual Drive D400 at major retailers like Costco?
When we checked, Costco and other big stores had it in the mid-range for dual-interface drives of this size. Sometimes you’ll catch a discount, but generally it’s a bit pricier than basic USB-A drives, thanks to the dual ports and metal body.
| Retailer | Typical Price Range* |
|---|---|
| Costco | Mid-range, sometimes discounted |
| Amazon | Similar to Costco, varies with sales |
| Other retailers | Comparable pricing, occasional bundles |
*Prices can change based on promotions.
How do you transfer files using the Lexar JumpDrive Dual Drive D400 on different smartphones?
On Android phones with USB-C, we just plugged it in and used the file manager to shift photos, videos, or whatever else needed moving. For iPhones with USB-C, it worked much the same—just hopped into the Files app. Swapping stuff between phones? We’d toss files onto the drive, unplug, and stick it in the other device to finish the job.
Would it help if we added a “Pros and Cons” section to this review, so you can spot the strengths and weaknesses right away?
