Transcend JF790 256GB USB Flash Drive
Bottom line: The Transcend JF790 256GB USB Flash Drive ($63.36 on Amazon as of 2026-10-21 00:15 UTC): 256GB capacity in a keyring-sized capless body; main trade-off: retractable slider is a moving part that can wear out.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 256GB capacity in a keyring-sized capless body
- ✓ Slide-out connector means no cap to lose
- ✓ USB 3.2 Gen 1 speeds, backward compatible to USB 2.0
- ✓ Five-year limited warranty from Transcend
Cons
- ✗ Retractable slider is a moving part that can wear out
- ✗ Plastic housing offers little crush or drop protection
- ✗ No published read/write speed ratings to compare against
- ✗ Transcend Elite software is Windows/Mac only, not mobile
Manufacturer description
The Transcend JetFlash 790 gives you 256GB of pocketable storage without a cap to lose. Push the colored slider and the USB connector extends; retract it and the contacts are shielded for the ride in a bag or pocket. The USB 3.2 Gen 1 interface (also sold as USB 3.1 Gen 1) delivers the faster transfer rates you want when moving photo libraries, video projects, or a Windows install image, and it stays backward compatible with USB 2.0, 3.0, and 3.1 ports. That breadth matters if you plug into a mix of desktops, laptops, a Mac, a smart TV, or a car audio head unit. A lanyard loop on the housing…
SpecPicks Verdict
SpecPicks scored Transcend JF790 256GB USB Flash Drive using a rating × review-volume × price-fit model applied to published specs and reviews across the PC & gaming hardware category. Transcend's PC & gaming hardware lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for PC & gaming hardware 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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will this flash drive work with USB 2.0 ports?
Yes. The JetFlash 790 uses a USB 3.2 Gen 1 interface and is listed as compatible with USB 2.0, 3.0, and 3.1 ports, though transfers run at the slower port's speed.
Does it work on a Mac as well as Windows?
Transcend lists PC, Mac, laptop, Windows, desktop, TV, and car audio use. You may want to reformat to a filesystem your devices share, such as exFAT, before moving large files.
Is there a cap I can lose?
No. It is a capless design. You push the colored slider to extend the USB connector and retract it to shield the contacts while the drive is in transit.
What warranty does Transcend include?
The drive carries a five-year limited warranty. Check the product listing for the current terms and registration requirements in your region.
Key Features
- Capless design with slide-out USB connector
- Lightweight and compact
- Lanyard / keyring loop
- Transcend Elite data management software
- Five-year Limited Warranty
Full Specifications
| Brand | Transcend |
|---|---|
| Color | Black |
| Model Name | JF790 |
| Read Speed | 90 megabytes_per_second |
| Unit Count | 1 Count |
| Write Speed | [10-50] megabytes_per_second |
| Connectivity | USB |
| Model Number | TS256GJF790K |
| Compatibility | PC, Mac |
| Mfr Part Number | TS256GJF790K |
| Special Feature | Lightweight, Retractable Connector |
| Flash Memory Type | Memory Stick |
| Compatible Devices | Tablet |
| Hardware Interface | USB 3.0 |
| Additional Features | Lightweight, Retractable Connector |
| Warranty Description | 5-Year Limited Warranty |
| Connectivity Technology | USB |
| Memory Storage Capacity | 256 GB |
| Hardware Connectivity Technology | USB Type A |
| Global Trade Identification Number | 00760557844365 |
| Full listing title | Transcend JF790 256GB USB Flash Drive, for PC/Mac/Laptop/Windows/Computer/Desktop/TV/Car Audio, USB3.2 Gen1 Memory Stick, Thumb Drives Data Storage w/Retractable Connector, USB2.0/3.0/3.1 Compatible |
Ready to buy?
Transcend JF790 256GB USB Flash Drive, for PC/Mac/Laptop/Windows/Computer/Desktop/TV/Car Audio, USB3.2 Gen1 Memory Stick, Thumb Drives Data Storage w/Retractable Connector, USB2.0/3.0/3.1 Compatible is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
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