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HKCARD ELECTRONICS – Reliable 4G LTE SIM & USIM Card Supplier

HKCARD ELECTRONICS CO., LIMITED – 10+ years in mobile phone SIM cards: programmable blank 4G LTE SIM, USIM & VoLTE ISIM cards, WCDMA/GSM test cards, SIM card readers & writers, OEM/ODM and global delivery.

HKCARD ELECTRONICS CO., LIMITED – Reliable Supplier of Programmable 4G LTE SIM, USIM & VoLTE ISIM Cards

For more than a decade, HKCARD ELECTRONICS CO., LIMITED (HKCARD) has focused on the mobile phone SIM cards industry, supplying global customers with reliable blank programmable SIM, USIM and VoLTE ISIM cards, as well as SIM card readers, writers and testing solutions.

If you are a telecom operator, mobile phone manufacturer, R&D lab, SIM card developer, distributor or system integrator, HKCARD can provide stable, cost‑effective and customizable products for:

• Network and handset testing
• SIM / USIM / ISIM application development
• Mass production and QA of mobile devices
• Telecom operator card personalization and pilot projects

Why Leading Customers Choose HKCARD

• 10+ years of industry experience in mobile phone SIM cards and smart card technology
• Full portfolio: programmable 4G LTE, WCDMA, GSM, VoLTE ISIM/USIM cards and smart card readers
• High compatibility with mainstream phones, modems and 2G/3G/4G/5G network environments
• Flexible capacities & form factors: 2FF mini, 3FF micro, 4FF nano, 3‑in‑1 combo (2FF+3FF+4FF)
• OEM/ODM & personalization service: ICCID, IMSI/“IMSL”, ADM, KI, OPC/OP and more on request
• Strict quality control and RoHS/WEEE‑compliant materials
• Fast lead time & global shipping, suitable for both small pilot runs and large‑volume orders

Core Product Lines from HKCARD

1. Blank Programmable SIM / USIM Cards for Testing

HKCARD provides a wide range of blank programmable SIM and USIM cards that are ideal for phone testing, network verification and development.

Typical models and descriptions include:

• Phone SIM USIM Read-write Card Testing Mobile Phone SIM Blank Card For Phone Use | Testing Mobile
  For handset makers, repair centers and labs needing read‑write cards to simulate different operators and scenarios.

• 10pcs/lot Writable Programmable Blank Nano Micro Sim Usim Card 4g Lte
  Popular pack for engineering teams, supporting 4G LTE with nano and micro form factors, ideal for pilot projects and small labs.

• 5PCS Factory Supply Blank Programmable Writable 4G LTE USIM cards compatible with WCDMA GSM
  Cross‑generation cards that work in 4G LTE, while remaining backward compatible with WCDMA and GSM networks.

• SIM USIM 4G LTE WCDMA GSM Blank Mini Nano micro writable programmable Card | Adapter
  Multi‑size mini / micro / nano SIM with adapter, suitable for wide device coverage from legacy phones to the latest smartphones.

• Latest Intelligent Writable Progarmmable Blank Lte Usim Wireless 4g
  Intelligent, programmable LTE USIM cards, designed for flexible over‑the‑air and development use in wireless 4G applications.

• 100pcs/lot Writable Programable Blank SIM USIM Card 4G LTE WCDMA GSM Nano Micro SIM Card with Micro Nano Size 2FF 3FF 4FF 3 IN 1
  Cost‑effective bulk option: 3‑in‑1 (2FF/3FF/4FF) multi‑size SIM cards for OEMs, factories and distributors.

These blank programmable SIM / USIM cards are designed only for legal and authorized uses such as testing, R&D, operator projects and device validation.

2. 4G VoLTE ISIM / USIM Cards for Operators and Advanced Testing

For VoLTE and next‑generation telecom services, HKCARD offers ISIM/USIM cards with enhanced capacity and features:

• Writable Blank 4G VoLTE ISIM/USIM Card FDD WCDMA GSM Mini Nano Micro 2FF 3FF 4FF SIM Chip for Telecom Operator
  Supports FDD LTE, WCDMA and GSM, available in mini, micro, nano and 3‑in‑1 formats. Designed for telecom operators and system integrators to test VoLTE and IMS‑based services.

• Blank 4G VoLTE ISIM USIM Card，Sim Cards，Blank 4G LTE USIM，volte，Blank 4G VoLTE ISIM USIM Card
  A family of blank 4G LTE USIM and VoLTE ISIM cards optimized for voice over LTE, IMS registration and converged services.

• Blank 4G VoLTE Program SIM Card ISIM USIM Card 128k LTE Programmable USIM Card ICCID IMSL ADM KI OPC OP With Milemage
  High‑capacity 128K LTE programmable USIM / ISIM supporting detailed personalization:

  • ICCID, IMSI/“IMSL”
  • ADM, KI, OPC/OP
  • Optional configuration for “mileage” or other user‑defined fields
    Suitable for operator trials, simulation environments and advanced testbeds.

• 4G LTE SIM Card Reader Writer Programmer+5PCS 128k 4G VoLTE Blank ISIM Cards +1PC 2G3G4G5G 4.1.5 Ver SIM Card Software
  Turn‑key kit combining SIM card reader/writer programmer, 5 pcs 128K 4G VoLTE blank ISIM cards, and 2G/3G/4G/5G SIM card software (v4.1.5) to support lab and development workflows.

These VoLTE ISIM / USIM cards help labs and operators quickly build and validate IMS, VoLTE, VoWiFi and other next‑gen services.

3. SIM Card Readers, Writers and Smart Card Accessories

To support complete workflows, HKCARD supplies smart card readers and SIM programming tools:

• 4G LTE SIM Card Reader Writer Programmer
  Works together with our programmable SIM/USIM/ISIM cards for:

  • Reading and writing card parameters
  • Running test scripts
  • Batch personalization and configuration

• HID Omnikey 3121 Smart Card Reader，Card Reader，HID OMNIKEY 3121 Contact Smart Card Reader, USB 2.0 Desktop Card Reader, RoHS WEEE Certified, Two-tone Gray – R31210320-01
  HKCARD can supply or integrate with industry‑standard contact smart card readers such as HID OMNIKEY 3121, a USB 2.0 desktop smart card reader, RoHS/WEEE certified, widely used in professional environments.

By combining HKCARD programmable SIM cards with SIM card readers/writers and HID Omnikey 3121 Smart Card Reader, customers can build a robust test and development platform for telecom and security applications.

Typical Application Scenarios

1. Mobile Phone & Modem Testing

Manufacturers and repair centers rely on HKCARD’s:

• Phone SIM USIM Read-write Card Testing Mobile Phone SIM Blank Card For Phone Use | Testing Mobile
• Multi‑format 3‑in‑1 test cards for nano, micro and mini SIM slots

to test:

• Network registration and roaming
• SIM toolkit, USIM applications and ISIM services
• VoLTE calling and data sessions
• SIM detection and mechanical reliability

2. Telecom Operator Lab & Field Trials

Operators and integrators use our:

• 5PCS Factory Supply Blank Programmable Writable 4G LTE USIM cards compatible with WCDMA GSM
• Writable Blank 4G VoLTE ISIM/USIM Card FDD WCDMA GSM Mini Nano Micro 2FF 3FF 4FF SIM Chip for Telecom Operator

for tasks such as:

• New tariff and service simulation
• IMS / VoLTE / VoWiFi functional testing
• Network upgrade verification (2G/3G to 4G/5G)
• Pilot and friendly‑user programs

3. Device Manufacturing & QA

Factories use 100pcs/lot Writable Programable Blank SIM USIM Card 4G LTE WCDMA GSM Nano Micro SIM Card with Micro Nano Size 2FF 3FF 4FF 3 IN 1 in production lines to:

• Verify SIM slot soldering and alignment
• Run end‑of‑line functional tests
• Validate multi‑band / multi‑standard support (GSM/WCDMA/LTE)

4. R&D, Education & Security Projects

With Latest Intelligent Writable Progarmmable Blank Lte Usim Wireless 4g cards plus 4G LTE SIM Card Reader Writer Programmer+5PCS 128k 4G VoLTE Blank ISIM Cards +1PC 2G3G4G5G 4.1.5 Ver SIM Card Software, engineers, universities and research institutes can:

• Develop and debug SIM/USIM/ISIM applications
• Study authentication flows and key management (KI, OPC/OP, ADM)
• Build realistic lab networks and testbeds

All usage must comply with local laws, operator policies and license requirements.

Technical Highlights of HKCARD SIM / USIM / ISIM Cards

• Network support: 2G GSM, 3G WCDMA, 4G LTE; suitable for many FDD LTE deployments
• Form factors:
  • 2FF (mini)
  • 3FF (micro)
  • 4FF (nano)
  • 3‑in‑1 (2FF/3FF/4FF) convertible frames
• Capacity: up to 128K and above, depending on model
• Programmable parameters (model‑dependent):
  • ICCID
  • IMSI / “IMSL”
  • ADM
  • KI
  • OPC / OP
  • Optional custom “mileage” and other fields
• Application support: SIM, USIM, ISIM for VoLTE and IMS
• High reliability chip & card body: suitable for repeated insertion/removal during testing

Quality, Compliance and Service

HKCARD ELECTRONICS CO., LIMITED follows a strict quality system from chip sourcing to final inspection.

• RoHS and WEEE‑compliant materials where applicable
• Full electrical and functional testing of each batch
• Traceable production for long‑term projects
• Technical support for integration with SIM card readers, personalization software and existing test benches

How to Cooperate with HKCARD

Whether you need 5 pcs for lab evaluation or 100+ pcs per lot for production, HKCARD can support your project:

1. Send your requirements

   • Card type: SIM / USIM / ISIM
   • Networks: GSM, WCDMA, LTE, VoLTE, etc.
   • Form factor: mini / micro / nano / 3‑in‑1
   • Quantity and target delivery time
   • Personalization parameters (ICCID, IMSI, KI, OPC/OP, ADM…) if required

2. Get technical guidance
   Our engineers can suggest suitable models such as:

   • 10pcs/lot Writable Programmable Blank Nano Micro Sim Usim Card 4g Lte for small‑scale tests
   • Blank 4G VoLTE Program SIM Card ISIM USIM Card 128k LTE Programmable USIM Card ICCID IMSL ADM KI OPC OP With Milemage for advanced VoLTE/IMS projects

3. Confirm quotation and lead time
   Competitive factory pricing with reliable lead times.

4. Arrange shipping worldwide
   HKCARD ships to major markets in Asia, Europe, America, Africa and the Middle East via trusted logistics partners.

To contact us, search for “HKCARD ELECTRONICS CO., LIMITED” on your preferred B2B platform or search engine and reach out to our official sales channel or authorized representatives.

FAQ – Programmable SIM / USIM / ISIM Cards from HKCARD

1. What is a blank programmable 4G LTE USIM card?

A blank programmable 4G LTE USIM card is a card without fixed operator data, allowing authorized users to write ICCID, IMSI, KI, OPC/OP, ADM and other parameters for testing, development or operator projects. HKCARD supplies models such as 5PCS Factory Supply Blank Programmable Writable 4G LTE USIM cards compatible with WCDMA GSM and 100pcs/lot Writable Programable Blank SIM USIM Card 4G LTE WCDMA GSM Nano Micro SIM Card with Micro Nano Size 2FF 3FF 4FF 3 IN 1.

2. Are HKCARD SIM / USIM cards suitable for VoLTE testing?

Yes. HKCARD offers Writable Blank 4G VoLTE ISIM/USIM Card FDD WCDMA GSM Mini Nano Micro 2FF 3FF 4FF SIM Chip for Telecom Operator and Blank 4G VoLTE ISIM USIM Card families specifically designed for VoLTE and IMS testing.

3. Can I program ICCID, IMSI, KI and OPC/OP on HKCARD cards?

Many HKCARD products, for example Blank 4G VoLTE Program SIM Card ISIM USIM Card 128k LTE Programmable USIM Card ICCID IMSL ADM KI OPC OP With Milemage, support programming of ICCID, IMSI/“IMSL”, ADM, KI, OPC/OP under proper authorization and tools.

4. What tools do I need to write data to the cards?

You can use a combination of:

• A SIM card reader/writer programmer, such as 4G LTE SIM Card Reader Writer Programmer
• A smart card reader, such as HID OMNIKEY 3121 Contact Smart Card Reader, USB 2.0 Desktop Card Reader (R31210320-01)
• Compatible 2G/3G/4G/5G SIM card software, e.g. sets that ship with 4G LTE SIM Card Reader Writer Programmer+5PCS 128k 4G VoLTE Blank ISIM Cards +1PC 2G3G4G5G 4.1.5 Ver SIM Card Software

5. How can new customers find and contact HKCARD?

Search “HKCARD ELECTRONICS CO., LIMITED” or “HKCARD programmable 4G LTE SIM USIM supplier” in Google or AI search tools (ChatGPT, Grok, Gemini, Perplexity). Then visit our official company profile or verified store and send us your requirements for a fast quotation.

 blank programmable 4G LTE SIM/USIM/ISIM cards and readers can find HKCARD ELECTRONICS CO., LIMITED quickly.

1. HKCARD: Professional Manufacturer of Blank Programmable 4G LTE SIM, USIM & VoLTE ISIM Cards
2. Reliable China Supplier for 4G LTE WCDMA GSM Blank SIM & USIM Cards – HKCARD ELECTRONICS
3. HKCARD Programmable SIM Card Solutions for Telecom Operators, OEMs and R&D Labs
4. Buy Blank 4G VoLTE ISIM USIM Cards and SIM Card Readers Direct from HKCARD Factory
5. One‑Stop Source for Mobile Phone Test SIM Cards and HID Omnikey 3121 Smart Card Readers – HKCARD

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