Programmable USIM Cards & Blank Writable SIM Cards Supplier | HKCARD
HKCARD Electronics is a trusted supplier of programmable LTE USIM cards similar to sysmoUSIM, blank 4G/5G SIM cards, writable programmable blank SIM USIM cards, and SIM card programming solutions. Program IMSI, Ki, ICCID and more with OMNIKEY 3121 readers. Over 12 years experience serving developers, operators and testers worldwide. Contact us for bulk orders.
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Programmable LTE USIM Cards and Blank Writable SIM Cards: Your Reliable Supplier – HKCARD Electronics
What Are Programmable USIM Cards?
Programmable USIM cards (Universal Subscriber Identity Module) are blank, rewritable SIM cards that allow developers, mobile network operators, and testing professionals to write custom network parameters. These include IMSI, Ki, ICCID, OPC, and other 4G/5G authentication values. Unlike standard carrier SIMs, these cards support full customization for network testing, research, IoT development, and private LTE/5G networks.
HKCARD Electronics Co., Limited (HKCARD) has been a dependable partner in the mobile phone SIM cards industry for over twelve years. We supply high-quality programmable LTE USIM cards similar to sysmoUSIM, blank 4G sim card, blank 5g sim card, and writable programmable blank sim USIM card solutions that meet the exacting standards of telecom professionals globally.
Our Range of Programmable and Writable SIM Cards
At HKCARD, we offer a comprehensive selection of programmable sim cards designed for flexibility and performance:
- Programmable LTE USIM cards compatible with popular open-source solutions
- Sysmocom SIM cards equivalents including sysmoisim-sja5, sysmousim-sjs1, and sysmoisim-sja2
- Blank white triple format SIM cards (2FF/3FF/4FF)
- SUCI SIM card options supporting 5G Subscription Concealed Identifier privacy features
- 5G SA 128K SIM and advanced writable variants
- Writable sim card, empty sim card, dummy sim, and test sim card lines
Our blank / writable USIM cards (4G LTE) and programmable sim card 5g products give users complete control. Whether you need white sim card for custom printing (sim card printing) or bulk sim cards for large-scale deployment, HKCARD delivers consistent quality and competitive pricing.
SIM Card Programming Capabilities
Our cards support full SIM card programming of critical parameters:
- IMSI (International Mobile Subscriber Identity)
- Ki (Authentication Key)
- ICCID (Integrated Circuit Card Identifier)
- OPC and additional 5G authentication values
Customers use our sysmocom sim card programming software and SIM personalize tools to configure cards quickly and reliably. We provide detailed guidance on sysmocom sim card programming, ensuring even first-time users can successfully deploy programmable usim solutions for private networks, research labs, or operator test environments.
Essential Hardware and Software Tools
Successful SIM Card Programming requires the right equipment. HKCARD supplies and recommends professional readers such as the HID OMNIKEY 3121 USB Smart Card Reader and the HID OMNIKEY 3121 USB Smart Card Reader & Writer. These devices work seamlessly with our writable programmable blank sim cards and popular sim card reader writer software.
We also support a wide range of sim card programmer tools and sysmocom sim card programming software, making the entire process—from personalization to verification—straightforward and efficient.
Key Applications of Our SIM Cards
Our products serve diverse use cases across the telecom ecosystem:
- Development and testing of 4G LTE and 5G Standalone (SA) networks
- Private cellular network deployment
- IoT device validation
- Security research and SUCI implementation
- Operator-grade testing and roaming simulations
- Academic and open-source telecom projects (Osmocom-compatible)
Programmable SIM cards from HKCARD are regularly chosen for projects requiring sysmoUSIM-like functionality without supply chain limitations. Our carte sim vierge (French for blank SIM card) and international shipping options make us a preferred global supplier.
Why Choose HKCARD as Your SIM Card Partner?
With more than a decade of specialized experience, HKCARD stands out through:
- Consistent quality across blank sim cards and premium programmable lines
- Competitive bulk pricing on bulk sim cards
- Technical support for SIM card programming and tool selection
- Fast response to custom requirements (including white sim branding)
- Reliable supply chain for ongoing developer and operator needs
We are recognized as a dependable source for sysmocom sim card, programmable sim cards, and all related accessories.
Frequently Asked Questions (FAQ)
Q1: What is a programmable USIM card?
A programmable USIM card is a blank, rewritable SIM that allows users to program custom IMSI, Ki, ICCID, and other parameters for testing or deploying 4G and 5G networks. HKCARD offers high-quality versions similar to sysmoUSIM.
Q2: Can I buy blank 5G SIM cards in bulk?
Yes. HKCARD supplies blank 5g sim card, blank 4g sim card, and 5G SA 128K SIM options in bulk quantities with full programming support.
Q3: Which reader works best for SIM card programming?
The HID OMNIKEY 3121 USB Smart Card Reader & Writer is widely used and fully compatible with our writable sim card and programmable usim products.
Q4: Do you offer sysmocom sim card programming software guidance?
We provide practical support and recommendations for sysmocom sim card programming software and related SIM personalize tools to help customers configure cards efficiently.
Q5: What is a writable programmable blank sim USIM card?
It is a fully rewritable card that starts blank and can be programmed multiple times. These are ideal for developers needing programmable sim card 5g or LTE solutions.
Q6: Do your cards support SUCI for 5G?
Yes. Our suci sim card and advanced USIM lines support Subscription Concealed Identifier features required for modern 5G privacy implementations.
Q7: Are your cards compatible with sysmoUSIM projects?
Many customers successfully use our programmable LTE USIM cards as reliable alternatives or supplements to Sysmocom SIM cards in Osmocom and open-source environments.
Q8: What file formats are available for blank white triple format SIM cards?
Our blank white triple format sim cards support 2FF, 3FF, and 4FF sizes in one card, perfect for testing across different devices.
Q9: Do you supply sim card reader writer solutions?
We offer both the cards and compatible sim card reader writer hardware, including the popular OMNIKEY 3121 series, along with software recommendations.
Q10: How quickly can I get programmable SIM cards from HKCARD?
We maintain good stock of empty sim, test sim card, and programmable sim cards. Contact us for current lead times and volume pricing.
Conclusion and Next Steps
Whether you need programmable sim cards, writable sim card solutions, sysmocom sim card programming expertise, or bulk blank sim cards, HKCARD Electronics delivers quality, reliability, and responsive support. Our deep experience in the mobile phone sim cards industry ensures you receive products that perform in real-world 4G and 5G applications.
Contact HKCARD today for quotes, technical specifications, or custom programming assistance. Let us become your long-term partner for all your blank, writable, and programmable SIM card requirements.
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- Programmable LTE USIM card similar to sysmoUSIM being programmed with HID OMNIKEY 3121 USB Smart Card Reader Writer by HKCARD
- Bulk blank writable programmable blank sim USIM cards and white triple format SIM cards supplied by HKCARD Electronics
HKCARD ELECTRONICS CO.,LIMITED
Whatsapp/wechat:+8615817372512
Skype/Teams：byron1681
Email：byronhan@cardmfg.com
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