Transcend TS-RDF9K2
Transcend TS-RDF9K2
Type
Stick / Box
Max Speed
UHS-II (260 MB/s)
Interface
Micro-B to USB-A/C
Price Tier
$
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Who Is This For?
Low-cost UHS-II reader that ships with both USB-A and USB-C cables, for photographers who move between computers.
Pros & Cons
Pros
- ✓Very fast UHS-II performance for a low price
- ✓Reliable LED activity light
Cons
- ✗Uses an older Micro-B connector on the reader side (cables included)
Full Specifications
| Brand | Transcend |
| Model | TS-RDF9K2 |
| Type | Stick / Box |
| Interface | Micro-B to USB-A/C |
| Supported Slots | SD UHS-II, microSD UHS-II, CompactFlash |
| Max Speed | UHS-II (260 MB/s) |
| Transfer Rate | High Speed |
| Price Tier | Mid-Range |
Device Compatibility
Works With
PC, Mac, Laptops
OS Support
Windows, macOS
Frequently Asked Questions
Why does the Transcend RDF9 use Micro-B instead of USB-C?
Micro-B is used for compactness. Compensated by including both USB-A and USB-C cables, making it compatible with any device (Mac, Windows, iPad, phones).
What are the real UHS-II transfer speeds for the RDF9?
Typical speeds are about 220-260 MB/s with UHS-II SD cards. Excellent value: cheaper than ProGrade but achieves 85%+ of their speeds. Depends on card quality.
What does the LED activity light tell me?
LED indicates read/write activity (on/off), not speed or progress. Useful for knowing when data transfers complete and it's safe to remove cards without data loss.
Is the Transcend RDF9 good for travel with multiple devices?
Yes. It is compact and comes with USB-A and USB-C cables, so it works with a MacBook, a Windows laptop or an iPad.
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Perfect For These Devices
Based on our compatibility testing, the Transcend RDF9 UHS-II Card Reader works excellently with: