SDC420T SD Card

In stock
Brand: Transcend

16GB/32GB/64GB/128GB/256GB SD Card 3D NAND Flash and rated to endure 3K P/E cycles

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Transcend's SDXC/SDHC 420T memory cards combine the benefits of high performance and exceptional endurance at an affordable price, making them ideal for demanding industrial applications such as POS terminals and portable devices equipped with an SD memory card slot. They use top-quality 3D NAND Flash and are rated to endure 3K P/E cycles.

Key Features:


  • Built-in ECC (Error Correction Code) functionality
  • Early Move
  • Wear-Leveling


  • Compliant with RoHS 2.0 standards
  • Electrostatic protection (ESD IEC 61000-4-2)
  • Compliant with SD specification 6.1
  • Compliant with UHS-I
  • Endurance: 3K P/E cycles (Program/Erase cycles) guaranteed


Dimensions 24 mm x 32 mm x 2.1 mm (0.94" x 1.26" x 0.08")
Form Factor
  • SD flash card


Flash Type
  • 3D NAND flash
  • 16 GB/
  • 32 GB/
  • 64 GB/
  • 128 GB/
  • 256 GB

Operating Environment

Operating Voltage
  • 2.7V ~ 3.6V
Drop Test
  • 1.5m free fall
Operating Temperature
  • Standard Temp.
    -25°C (-13°F) ~ 85°C (185°F)
Storage Temperature -40°C (-40°F) ~ 85°C (185°F)
Humidity 0% ~ 95%
  • Acceleration: 490 m/s² (standard holding time: 11 ms, semi-sine wave, velocity change: 3.44 m/s)
Vibration (Operating) 20 G (peak-to-peak), 20 Hz ~ 2,000 Hz (frequency)


Power Consumption (Max.) 2.88 watt(s)


Read Speed (Max.) up to 95 MB/s
Write Speed (Max.) up to 40 MB/s
Terabytes Written (TBW) up to 640 TBW
  • Speed may vary due to host hardware, software, usage, and storage capacity.
  • Terabytes Written (TBW) expresses the endurance under the highest capacity.