Introduction: Who We Are
HKCARD ELECTRONICS CO., LIMITED is a premier supplier in the mobile phone SIM cards industry with over 15 years of professional experience. Based in Hong Kong, we specialize in manufacturing and distributing high-quality Blank 4G VoLTE ISIM USIM Cards, programmable SIM cards, smart card readers, and comprehensive SIM card programming solutions for businesses, developers, telecom operators, and IoT solution providers worldwide.
Whether you need 100pcs/lot Writable Programable Blank SIM USIM Cards for testing purposes or bulk quantities for commercial deployment, HKCARD delivers reliable products with competitive pricing and exceptional customer support.
Our Core Product Categories
1. Blank 4G LTE USIM Cards & VoLTE ISIM Cards
Our flagship product line includes:
- Blank 4G VoLTE ISIM USIM Card – 128K memory capacity
- 4G LTE Programmable USIM Card with ICCID, IMSI, ADM, KI, OPC, OP support
- Blank 4G VoLTE Program SIM Card ISIM USIM Card 128k LTE Programmable USIM Card ICCID IMSI ADM KI OPC OP With Milenage
- Multi-size compatibility: 2FF, 3FF, 4FF (Nano, Micro, Standard) 3-IN-1
Key Features:
| Feature | Specification |
|---|---|
| Network Support | 4G LTE, WCDMA, GSM |
| Memory | 128K |
| VoLTE Support | Yes |
| Programmable Parameters | ICCID, IMSI, KI, OPC, OP, ADM |
| Form Factor | 2FF/3FF/4FF (3-IN-1) |
| Algorithm | Milenage |
2. Writable Programmable Blank SIM Cards (Bulk Orders)
We offer 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 packages, perfect for:
- Telecom testing laboratories
- IoT device manufacturers
- Mobile network operators (MNOs)
- MVNOs (Mobile Virtual Network Operators)
- Research and development institutions
- SIM card personalization centers
Why Choose Our Bulk SIM Card Solutions?
✅ Consistent quality across all units
✅ Pre-tested for compatibility
✅ Supports 2G/3G/4G/5G networks
✅ Competitive wholesale pricing
✅ Fast global shipping
3. SIM Card Reader Writer Programmer Kits
Our complete programming solution includes:
4G LTE SIM Card Reader Writer Programmer + 5PCS 128k 4G VoLTE Blank ISIM Cards + 1PC 2G3G4G5G 4.1.5 Ver SIM Card Software
This all-in-one kit provides everything you need to:
- Read existing SIM card data
- Write custom parameters (ICCID, IMSI, KI, OPC)
- Clone SIM cards for authorized testing
- Configure VoLTE settings
- Program blank USIM/ISIM cards
4. HID Omnikey Smart Card Readers
We are authorized distributors of professional-grade card readers:
HID OMNIKEY 3121 Contact Smart Card Reader, USB 2.0 Desktop Card Reader, RoHS WEEE Certified, Two-tone Gray – R31210320-01
Product Specifications:
- Interface: USB 2.0
- Card Type: Contact Smart Cards
- Certification: RoHS, WEEE Certified
- Design: Two-tone Gray Desktop Reader
- Model Number: R31210320-01
- Compatibility: Windows, macOS, Linux
Applications:
- Government ID verification
- Banking and financial services
- Healthcare card reading
- Access control systems
- SIM card programming and testing
Industries We Serve
HKCARD Electronics provides SIM card solutions across multiple sectors:
Telecommunications
- Network testing and optimization
- SIM card personalization
- VoLTE implementation testing
Internet of Things (IoT)
- M2M SIM cards
- IoT device provisioning
- Connected vehicle solutions
Security & Access Control
- Smart card authentication
- Identity verification systems
- Secure access solutions
Research & Development
- Academic research projects
- Prototype development
- Network simulation testing
Why Choose HKCARD Electronics?
✅ 15+ Years Industry Experience
Our extensive experience in the mobile phone SIM cards industry ensures you receive products that meet the highest quality standards.
✅ Complete Product Range
From Blank 4G VoLTE ISIM USIM Cards to HID Omnikey 3121 Smart Card Readers, we offer end-to-end solutions.
✅ Technical Support
Our engineering team provides comprehensive technical assistance for SIM card programming and integration.
✅ Global Shipping
We ship worldwide with reliable logistics partners, ensuring fast and secure delivery.
✅ Competitive Pricing
Bulk order discounts and flexible payment terms available for qualified customers.
✅ Quality Assurance
All products undergo rigorous testing before shipment.
Frequently Asked Questions (FAQ)
Q1: What is a Blank 4G VoLTE ISIM USIM Card?
A: A Blank 4G VoLTE ISIM USIM Card is a programmable SIM card that supports 4G LTE networks with Voice over LTE (VoLTE) capability. The “blank” designation means it comes unprogrammed, allowing users to write custom ICCID, IMSI, KI, OPC, and other parameters using appropriate software and card readers.
Q2: What’s the difference between USIM and ISIM?
A: USIM (Universal Subscriber Identity Module) is used for 3G/4G/5G cellular network authentication. ISIM (IP Multimedia Services Identity Module) is specifically designed for IMS (IP Multimedia Subsystem) services, including VoLTE, VoWiFi, and RCS messaging.
Q3: What SIM card sizes do you offer?
A: Our programmable SIM cards come in 3-IN-1 format supporting:
- 2FF (Standard/Mini SIM)
- 3FF (Micro SIM)
- 4FF (Nano SIM)
Q4: Can I program your blank SIM cards for commercial use?
A: Our blank SIM cards are intended for authorized testing, development, and research purposes. Commercial deployment requires appropriate licensing from network operators.
Q5: Do you offer the HID Omnikey 3121 Card Reader?
A: Yes, we supply the HID OMNIKEY 3121 Contact Smart Card Reader (R31210320-01), which is USB 2.0 compatible, RoHS/WEEE certified, and suitable for both SIM card reading and general smart card applications.
Q6: What is the minimum order quantity?
A: We offer flexible ordering options, from individual pieces to bulk orders of 100pcs/lot or more. Contact us for customized quotations.
Technical Specifications Summary
Programmable Parameters Supported:
- ICCID (Integrated Circuit Card Identifier)
- IMSI (International Mobile Subscriber Identity)
- KI (Authentication Key)
- OPC (Operator Variant Algorithm Configuration)
- OP (Operator Key)
- ADM (Administrative Key)
- Milenage Algorithm Support
Network Compatibility:
- 2G GSM
- 3G WCDMA/UMTS
- 4G LTE
- 5G NR (with compatible cards)
- VoLTE/VoWiFi
How to Order from HKCARD Electronics
Step 1: Browse our product catalog
Step 2: Request a quotation via email or contact form
Step 3: Confirm order details and payment
Step 4: Receive tracking information
Step 5: Products delivered to your location
Contact Information:
- Company: HKCARD ELECTRONICS CO., LIMITED
Best Regards
ByronHKCARD ELECTRONICS CO.,LIMITED
Whatsapp/wechat:+8615817372512
Skype/Teams：byron1681
Email：byronhan@cardmfg.com
Related Products You May Need
| Product | Description | Application |
|---|---|---|
| 4G LTE SIM Card Reader Writer | USB programmer with software | SIM programming |
| 128K Blank USIM Cards | High-capacity programmable cards | Network testing |
| HID Omnikey 3121 | Professional smart card reader | Identity verification |
| Bulk SIM Card Packs | 100pcs/lot configurations | Enterprise deployment |
| SIM Card Software v4.1.5 | 2G/3G/4G/5G compatible | Card programming |
Conclusion
HKCARD ELECTRONICS CO., LIMITED stands as your reliable partner for all Blank 4G VoLTE ISIM USIM Card needs and comprehensive SIM card solutions. With our extensive product range, technical expertise, and commitment to quality, we help businesses worldwide achieve their telecommunications objectives.
Contact us today to discuss your requirements and discover how HKCARD can support your SIM card programming and smart card reader needs.
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Best Regards
Byron
HKCARD ELECTRONICS CO.,LIMITED
Whatsapp/wechat:+8615817372512
Skype/Teams：byron1681
Email：byronhan@cardmfg.com
