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HKCARD programmable 5G NR R16 SA USIM cards in 2FF/3FF/4FF, pySim/Open5GS compatible
#128K4GVoLTEBlankISIMCards

This product is a writable, programmable blank USIM card made for telecom engineers and operator labs. It ships blank (no subscriber profile), so it will not provide voice or data service until you program it with the correct credentials and network parameters.

If you’re not familiar with SIM/USIM programming, this is not a consumer SIM card—please don’t purchase it for regular phone use.

Network Compatibility (card capability)

  • GSM (2G)
  • WCDMA (3G)
  • 4G LTE: supports FDD LTE and TDD LTE (depending on your configuration and network)

Important: Compatibility here means the card platform supports these technologies. Whether it can register and pass traffic depends on the profile you write and the network you are testing.

What you can program / rewrite

This is a lab-style card intended for repeated personalization. Common writable items include:

  • ICCID
  • IMSI
  • Ki
  • OPC / OP
  • PIN / PUK
  • ADM
  • GSM-related rewritable data (project dependent)

Authentication support includes Milenage, which is widely used in modern 3G/4G authentication setups.

Form Factor: 3-in-1 (2FF/3FF/4FF)

Each card is 3-in-1, so you can use it as:

  • 2FF (Mini SIM)
  • 3FF (Micro SIM)
  • 4FF (Nano SIM)

This makes it convenient for labs that test across different phones, modems, and routers.

Who it’s for

  • Telecommunications operators
  • Private LTE test networks / campus network labs
  • Device manufacturers doing network bring-up and verification
  • R&D teams running USIM/SIM file and authentication testing

What you need to use it

Because the cards are blank, you must program them first. Typically you’ll need:

  • A SIM card reader/writer
  • Programming software/tools
  • Your own test network or operator core settings (subscriber database, keys, etc.)

Package

  • 5 pcs per pack

Quick reminder (to avoid confusion)

  • These are blank USIM cards (no preloaded subscriber data).
  • Out of the box: NO call, NO internet until properly personalized and provisioned in your test/operator environment.

If you tell us your use case (operator lab, private LTE, module testing) and the reader/writer model you’re using, HKCARD ELECTRONICS CO.,LIMITED can suggest the most suitable card option and form factor for your workflow.

HKCARD ELECTRONICS CO.,LIMITED
Whatsapp/wechat:+8615817372512
Skype/Teams：byron1681
Email：byronhan@cardmfg.com