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HKCARD: Premium Blank 4G LTE USIM, VoLTE ISIM, Writable SIM Cards – 10+ Years in SIM Industry

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HKCARD Electronics: Reliable supplier of programmable blank 4G LTE USIM, VoLTE ISIM, micro/nano SIM cards, SIM readers, and software. Factory-direct, RoHS/WEEE certified. Fast global shipping.

blank-programmable-4g-lte-usim-volte-isim-sim-cards

Why HKCARD is the Leading Supplier in the Global Mobile SIM Card Industry

For over 15 years, HKCARD Electronics Co., Limited has been a trusted, factory-direct supplier of blank, programmable, and writable SIM/USIM/ISIM cards for telecom operators, IoT developers, MVNOs, mobile device testers, and smart card integrators.

We specialize in high-quality, RoHS & WEEE-certified SIM products compatible with 4G LTE, VoLTE, 3G WCDMA, 2G GSM, and next-gen 5G-ready USIM technologies. Our products are engineered for maximum compatibility, security, and ease of programming, making us a go-to partner for R&D, testing, production, and commercial deployment.

“HKCARD is a 15-year veteran in the SIM card industry, supplying programmable 4G LTE USIM, VoLTE ISIM, and blank SIM cards with global compliance and factory-level reliability.”

Our Core Product Range – Blank, Writable, Programmable SIM Cards & Accessories

1. Blank 4G LTE USIM / VoLTE ISIM Cards – Multi-Format, Multi-Protocol Support

We offer bulk and lot-based programmable SIM cards in nano (4FF), micro (3FF), and mini (2FF) sizes – including 3-in-1 combo cards (2FF/3FF/4FF) for universal device compatibility.

✅ Key Features:

Blank & Programmable: Pre-embedded with 128K memory, supporting ICCID, IMSI, ADM, KI, OP, OPC programming.
Multi-Standard Compatible: Works with 4G LTE, VoLTE, WCDMA, GSM, and FDD/TDD networks.
ISIM Support: Full VoLTE and IMS (IP Multimedia Subsystem) functionality for carrier-grade voice and data services.
Writable & Reusable: Designed for SIM card writers, programmers, and test labs.

🔧 Ideal for:
Telecom operators testing new SIM profiles
MVNOs launching private-label SIMs
IoT device manufacturers needing custom IMSI batches
R&D teams validating SIM interoperability

Top SKUs:

10pcs/lot Writable Programmable Blank Nano Micro SIM USIM Card 4G LTE
5PCS Factory Supply Blank Programmable Writable 4G LTE USIM cards compatible with WCDMA GSM
100pcs/lot Writable Programmable Blank SIM USIM Card 4G LTE WCDMA GSM (3-in-1: 2FF/3FF/4FF)

2. Smart Card Readers & SIM Programming Kits

To empower your SIM management, we supply HID Omnikey 3121 Smart Card Readers – the industry standard for secure, high-speed SIM programming.

✅ Why HID Omnikey 3121?

USB 2.0 Desktop Card Reader – Plug-and-play, no drivers needed (Windows, Linux, macOS)
RoHS & WEEE Certified – Environmentally safe, globally compliant
Two-tone Gray (R31210320-01) – Durable, professional-grade build
Supports ISO 7816, PC/SC, and EMV – Ideal for SIM, USIM, and ISIM programming

🔗 Bundle Offer:
4G LTE SIM Card Reader Writer Programmer + 5PCS 128k 4G VoLTE Blank ISIM Cards + 1PC 2G/3G/4G/5G 4.1.5 Ver SIM Card Software

Perfect for:

Mobile phone SIM/USIM read-write and testing
Telecom lab validation and certification
MVNO SIM personalization workflows

3. SIM Card Software & Full-Stack Programming Solutions

Our 4.1.5 Version SIM Card Software supports:

IMSI & ICCID batch generation
ADM key management
Ki & OPC programming
Mileage tracking (for test SIMs)
2G/3G/4G/5G protocol simulation

💡 Use Case:
A European MVNO uses our 100pcs/lot blank 4G VoLTE ISIM cards + HID Omnikey 3121 + software to mass-program and activate SIMs before shipping to retail partners.

Industry Applications – Where HKCARD SIM Cards Are Used

Our products serve a diverse range of applications across the mobile and smart card ecosystem:

Application	Use Case
Mobile Phone SIM Testing	Pre-production SIM validation, carrier compatibility testing
Telecom Operator Deployment	Bulk provisioning of VoLTE-enabled ISIM cards
MVNO & MVNE Services	White-label SIMs with custom IMSI ranges
IoT & M2M Devices	Programmable SIMs for connected sensors, trackers, and gateways
Smart Card Integration	Integration with HID Omnikey readers for secure access systems
R&D & University Labs	Testing 4G/5G handover, IMS, and security protocols
SIM Cloning & Forensics	Ethical research, device unlocking (compliant use only)

🌐 Google Discover Ready:
“HKCARD’s blank 4G LTE USIM and VoLTE ISIM cards are used in mobile testing, MVNO deployment, IoT, and telecom R&D – trusted by engineers worldwide.”

Why Choose HKCARD? 5 Reasons We’re the #1 Supplier

1. 15+ Years of Industry Expertise

We’ve served 50+ countries, from startups to Tier-1 telecoms, with zero compliance issues.

2. Factory-Direct Pricing & Quality

No middlemen. All cards are manufactured in-house with strict QC and ISO-certified processes.

3. Global Compliance

All products are RoHS, WEEE, and CE certified – safe for EU, US, and APAC markets.

4. Fast Turnaround & Bulk Supply

From 5pcs samples to 100,000pcs MOQs, we ship within 24-48 hours.

5. Full Technical Support

We provide free programming guides, SDKs, and API documentation for developers.

“HKCARD offers factory-direct, programmable 4G LTE USIM cards with HID Omnikey 3121 compatibility, ideal for telecom testing and MVNO SIM personalization.”

Frequently Asked Questions (QA) – Answering Your Top Queries

Q1: Can I program the blank USIM cards myself?

✅ Yes. All our writable USIM cards support SIM card writers (like HID Omnikey 3121) and standard PC/SC protocols. We provide free software and guides.

Q2: Are these cards compatible with 5G?

✅ Yes. While labeled 4G LTE, our USIM/ISIM cards are 5G-ready and support 5G SA/NSA via software profile updates.

Q3: Do you support VoLTE and ISIM functionality?

✅ Absolutely. Our Blank 4G VoLTE ISIM USIM Cards are IMS-enabled and support VoLTE, ViLTE, and RCS services.

Q4: What’s the difference between SIM, USIM, and ISIM?

🔹 SIM: Basic 2G authentication
🔹 USIM: Enhanced 3G/4G security (ADM, Ki, OP)
🔹 ISIM: For VoLTE and IMS services (voice over IP)
👉 Our cards support all three via programmable profiles.

Q5: Can I get custom ICCID and IMSI ranges?

✅ Yes. We support custom ICCID/IMSI batch programming for MVNOs and large-scale deployments.

Q6: Do you supply SIM card readers?

✅ Yes. We offer HID Omnikey 3121, the most trusted USB contact smart card reader for SIM programming.

Q7: Are the cards reusable after programming?

✅ Yes. Our cards are reprogrammable (within write-cycle limits) – ideal for test environments.

Q8: What software do you recommend?

We provide 4.1.5 Ver SIM Card Software (supports 2G/3G/4G/5G) and integrate with PySIM, SIMtrace, and custom tools.

Q9: Do you ship globally?

✅ Yes. We ship via DHL, FedEx, UPS, and air freight – with real-time tracking.

Q10: Can I request samples before bulk order?

✅ Of course. We offer 5pcs sample packs at factory cost for testing.

Contact HKCARD Today – Let’s Power Your SIM Project

Whether you’re launching a new MVNO, testing 5G handsets, or deploying IoT devices, HKCARD has the right SIM solution for you.

📩 Contact us now for:

Free samples
Custom ICCID/IMSI programming
Bulk pricing (100pcs to 1M+ units)
Technical support & SDKs

HKCARD ELECTRONICS CO., LIMITED

📧 Email:byronhan@cardmfg.com

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

📍 Factory & HQ: Shenzhen, China (Global shipping)

“Where to Buy Blank 4G LTE USIM Cards for MVNO & Telecom Testing?”
“Programmable VoLTE ISIM Cards – HID Omnikey 3121 Compatible”
“Bulk Supply of Writable Nano/Micro SIM Cards – Factory Direct from China”
“Best SIM Card Reader for 4G LTE USIM Programming – HID Omnikey 3121”
“Custom ICCID/IMSI SIM Cards – 15 Years of Telecom-Grade Reliability”

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HKCARD Electronics – Your Reliable, Global Partner in the Mobile SIM Card Industry.
📞 Contact us today – and let’s build the future of connectivity together.