Hologram eUICC SIM Card

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The Hologram eUICC SIM Card is a mix between legacy and new technology when cellular service is needed your project. This eUICC SIM Card enables profile switching capabilities so you can dynamically change the subscriber profile while your chosen devices are in the field, over-the-air. For those looking for IoT cellular service with no intentions on switching cellular carriers, this SIM card is for you.

eUICC features are limited to certain modules at this point. This includes the u-blox SARA-R4 module used on our SparkFun LTE CAT M1/NB-IoT Shield - SARA-R4. For these situations, the functionality will be that of a normal SIM with cellular service through Hologram. You won't be able to change carriers.

  • Temperature Range: -25C to 85C
  • Nano SIM 8.8mm x 12.3mm
  • Minimum 500,000 Read/write cycles
  • Minimum 25 yrs at 25°C Data retention

Hologram eUICC SIM Card Product Help and Resources

Hologram eUICC SIM Special Features Compatibility with SparkFun LTE CAT M1/NB-IoT Shield - SARA-R4

The Hologram enhanced eUICC SIM card [ e.g. CEL-17117 ] will work with SparkFun LTE CAT M1/NB-IoT Shield - SARA-R4 [ e.g. CEL-14997 ] but the special eUICC features will not be operable with the shield at this current time.

If you need further assistance with these key features please visit the Hologram support forum:


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • combs / about 4 years ago / 1

    Have to confess, I don't understand the description of this product at all.

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