HKCARD: Programmable 5G SA & 4G LTE USIM Manufacturer | Writable IMSI/Ki/OPc

HKCARD ELECTRONICS offers reliable, re-programmable SIM cards for IoT, MVNO, and testing. Writable IMSI, Ki, ICCID, OP/OPc. Bulk 5G SA, LTE, and Java Card supplier.

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  1.  “HKCARD Programmable USIM Card 5G SA and 4G LTE with 2FF 3FF 4FF cutouts for IoT testing.”
  2. : “PC/SC SIM reading tools programming writable IMSI and Ki on a blank white SIM card.”

 

  1. The Ultimate Guide to Writable SIM Cards: 4G LTE & 5G SA Solutions by HKCARD
  2. Unlock IoT Potential: Custom Programmable USIMs and Java Cards for Developers
  3. Why HKCARD is Your Trusted Source for Bulk White Label and Test SIM Cards
  4. Beyond Standard SIMs: Re-programmable 5G NR and LTE Cards for Network Testing
  5. Sourcing Blank SIMs? Discover HKCARD’s Writable IMSI, Ki, and OPc Solutions


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 HKCARD ELECTRONICS: Your Premier Supplier for Writable 5G, 4G LTE, and Programmable USIM Cards

For over a decade, HKCARD ELECTRONICS CO.,LIMITED has stood as a pillar in the mobile phone SIM cards industry. We specialize in providing high-quality, re-programmable (not one-time burn) SIM cards to telecommunications engineers, MVNOs, IoT developers, and test labs worldwide.

Whether you require a programmable SIM card 5G solution for a private network or a bulk sim order for a new MVNO launch, our expertise ensures you get the exact technical specifications required for your project.

 Advanced Programmable Capabilities: Writable IMSI, Ki, and OPc

At HKCARD, we understand that flexibility is key for network testing and development. Unlike standard carrier cards, our products are open for configuration. We provide sim card solutions that allow full access to the file system via standard PC/SC tools.

Fully Writable Fields

Our cards are designed for professionals who need control. You can customize the following parameters:

  • Writable IMSI SIM Cards: Essential for creating test subscribers.
  • Writable ICCID SIM Cards: Customize your card identification.
  • Writable Ki SIM Cards: Secure authentication key programming.
  • Writable OP or OPc SIM Cards: Support for Operator Variant Algorithm Configuration Field.
  • Writable KEY SIM Cards: Full control over authentication keys.
  • Writable SPN, MNC, and MCC SIM Cards: tailor the Service Provider Name, Mobile Network Code, and Mobile Country Code to your specific test network or private LTE setup.

These are re-programmable cards, meaning you can update the data as your testing requirements evolve. They are fully compatible with open-source tools like pySim, making them an excellent alternative for users familiar with sysmoISIM-SJA2 or sysmocom sim cards.

 Next-Gen Connectivity: 5G SA, LTE, and IoT Solutions

As the telecom landscape shifts, HKCARD is at the forefront with Custom SIM cards for 4G LTE & 5G NR Networks.

5G and 5G SA (Standalone)

We are proud to offer Programmable 5G NR 3GPP R16 SA 5G SIM Cards. These cards support the latest authentication algorithms required for Standalone 5G networks, including SUCI SIM card profiles (Subscription Concealed Identifier) for enhanced privacy.

  • 5G SA 128k SIM / 256k SIM / 512k SIM: Available in various memory sizes.
  • USIM / LTE SIM Cards (not GSM-only): Backward compatible but optimized for modern data speeds.

IoT and Evaluation

For Internet of Things (IoT) developers, we provide IoT/Evaluation SIM Cards and blank SIM cards perfect for M2M devices. Whether you need a multi network 4g volte sim card or a sim dummy for hardware testing, our inventory is stocked and ready to ship.

 Form Factors and Customization (White Label)

We cater to all hardware requirements. Our cards come in the standard 2FF / 3FF / 4FF SIM Cards (Mini, Micro, Nano) trio-breakout format, often referred to as simcard half lte or credit-card style sizing.

White Label & Bulk Manufacturing

Are you an MVNO or a brand looking to launch your own service? HKCARD is a leading sim card manufacturer offering:

  • White SIM Card / White Label SIM Cards: Blank white surfaces ready for your thermal printing or branding.
  • Bulk SIM & SIM Card Wholesale: Competitive pricing for large orders.
  • Java SIM Cards: We supply Java SIM and Open Platform cards for applet development (comparable to JCOP or Gemalto specs).

Why Choose HKCARD Over Others?

We offer high-performance alternatives to standard market options. If you are looking for products similar to sysmoUSIM-SJS1Giesecke+Devrient, or generic offbrand sim supplies, HKCARD provides superior customer support and technical documentation.

  • Versatility: From CDMA SIM cards to NFC SIM (Near Field Communication) solutions.
  • Tools: We can advise on sim personalize tools and sim card creator software.
  • Global Compatibility: Our blank sim card airtel compatible types and USIM test solution packs work with major network equipment simulators (Amari Callbox, SRSran, Open5GS).

 Frequently Asked Questions (FAQ)

Q1: Can I write the IMSI and Ki keys myself on HKCARDs?
A: Yes, our Writable IMSI SIM Cards and Writable Ki SIM Cards are fully re-programmable. You can configure them using standard PC/SC smart card readers and software like pySim.

Q2: Do you supply SIM cards for 5G Standalone (SA) networks?
A: Absolutely. We specialize in Programmable 5G NR 3GPP R16 SA 5G SIM Cards, including support for SUCI and 5G authentication algorithms (Milenage, XOR, TUAK).

Q3: Are these cards “one-time burn” or re-writable?
A: We provide Re-programmable (not one-time burn) SIM Cards. You can write the data, test, and rewrite the data as many times as the EEPROM allows.

Q4: What form factors are available?
A: We supply the standard 2FF / 3FF / 4FF SIM Cards on a single plastic card (Trio-SIM), making them compatible with any device slot, from legacy modems to the latest iPhones.

Q5: Can I order blank white SIM cards for my MVNO?
A: Yes, we are a major supplier of white label MVNO sim cards. These are white sim cards (no logo) that are blank sim cards ready for your personalization and branding.

Q6: Do these cards support Java Applets?
A: Yes, we offer Java SIM cards with varying memory sizes (128k, 256k, 512k) suitable for running custom applets for security or banking applications.

Q7: Are your cards compatible with 4G LTE and VoLTE testing?
A: Yes, our cards are ideal 4G LTE/WCDMA blank cards and serve as a reliable 4G VoLTE tester solution for ensuring voice quality on your network.

Q8: Do you sell dummy SIM cards?
A: Yes, we supply dummy sim card and fake sim products used for mechanical testing in production lines or retail displays.

Q9: What is the minimum order quantity for bulk SIMs?
A: As a sim card wholesale supplier, we accept orders ranging from small evaluation kits (10-100 pcs) to massive bulk sim orders for commercial deployment. Contact us for a quote.

Q10: Do you ship globally?
A: Yes, HKCARD ELECTRONICS ships worldwide. Whether you need blank sim card airtel compatible chips in India, or sysmocom alternatives in Europe, we deliver.


 Contact HKCARD ELECTRONICS

Don’t settle for locked, static SIMs. Upgrade to HKCARD’s flexible, programmable SIM cards today.

Contact us to request a quote or technical datasheet.

 

HKCARD ELECTRONICS CO., LIMITED

📧 Email:byronhan@cardmfg.com

🌐 Website: https://www.cardmfg.com/
📱 WhatsApp/Wechat: +8615817372512

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