Transcend RDF5 Card Reader

Here are the specifications for the Transcend RDF5 card reader:

General

• Model name: RDF5 (also TS-RDF5K, TS-RDF5W, TS-RDF5R for different colors).

• Interface: USB Type-A, USB 3.1 Gen 1 (aka SuperSpeed USB 5 Gbit/s).

• Backwards compatible with USB 2.0.

Supported Memory Cards

• SDHC / SDXC (UHS-I).

• microSDHC / microSDXC (UHS-I).

Note: It will accept UHS-II cards but only operate them at UHS-I speeds.

Physical Specs

• Dimensions: 56 mm × 24 mm × 8.9 mm (≈ 2.20″ × 0.94″ × 0.35″).

• Weight: 18 g (≈ 0.63 oz).

• Colors available: Black, White, Pink.

Electrical & Environmental

• Operating voltage: 5 V (bus-powered via USB).

• Operating temperature: 0 °C to 70 °C (32 °F to 158 °F).

Indicators / Features

• LED indicator to show card insertion and data transfer activity.

• Does not support using both slots (SD + microSD) simultaneously—only one card at a time. 

Speed / Performance

• Performance is limited by UHS-I when used with UHS-I cards.

• In practice, read/write speeds around 90 MB/s read / 60+ MB/s write have been reported with a good UHS-I card.

Compatibility

• Operating systems supported: Windows (Windows 7 / 8 / 10), macOS (OS X 10.2.8 or later), Linux (kernel 2.6.30 or later) 

• Certifications: CE / FCC / BSMI / KC / RCM / EAC

Warranty

• Two‐year limited warranty (

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