Programmable SIM Cards for 4G/5G & IoT | HKCARD Electronics – Sysmocom Compatible
Your trusted supplier for high-quality programmable SIM cards. HKCARD offers blank, writable, and custom SIMs for 4G LTE, 5G SA, and IoT testing. Fully compatible with pySim and Sysmocom tools (SJA2, SJS1). Order bulk SIMs, NFC, and 128k/256k USIMs today.
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HKCARD: Your Premier Supplier for Programmable 4G LTE & 5G SIM Cards
In the dynamic mobile phone SIM cards industry, having a reliable partner is crucial. With over a decade of experience, HKCARD ELECTRONICS CO., LIMITED has established itself as a leading global supplier of advanced programmable SIM cards. We provide robust, high-quality solutions for telecom operators, MVNOs, IoT developers, research labs, and universities.
Our mission is to empower your projects with fully customizable and re-programmable SIM cards that support the latest 4G LTE, 5G NR SA, and IoT technologies. Whether you’re developing, testing, or deploying, HKCARD has the sim card solutions you need to succeed.
The Ultimate Range of Writable & Programmable SIM Cards
HKCARD offers an extensive catalog of blank SIM cards that give you complete control. Our SIMs are re-programmable (not one-time burn), allowing for repeated use in dynamic test environments. You can easily write and rewrite critical network parameters using standard PC/SC tools like pySim.
Our writable SIMs support full customization of:
- Writable IMSI SIM Cards
- Writable Ki SIM Cards
- Writable ICCID SIM Cards
- Writable OP or OPc SIM Cards
- Writable KEY, SPN, MNC, and MCC SIM Cards
This flexibility makes our cards the perfect choice for network simulation, security research, and product validation.
A variety of HKCARD’s white programmable SIM cards, including nano-USIM and multi-network 4G VoLTE SIM cards, for use in IoT, 5G SA, and test lab environments.
Looking for Sysmocom Alternatives? HKCARD is Your Solution.
Many developers and engineers rely on Sysmocom products for their testing needs. If you are searching for Sysmocom SIM cards, including sysmoISIM-SJA2, sysmoUSIM-SJS1, or sysmoISIM-SJA5, you know that availability and cost can be a challenge.
HKCARD provides form-, function-, and file-system-compatible alternatives that work seamlessly and are more readily available.
Our programmable test SIM cards are a perfect drop-in replacement, offering 100% compatibility with:
- pySim and other PC/SC-based sim programming tools.
- Open-source mobile network stacks like Open5GS and srsRAN.
- Standard USIM test solution environments used in labs and universities.
Choose HKCARD for reliable, cost-effective alternatives to SJA2 and other sysmocom sim products without sacrificing performance or compatibility.
Advanced SIM Solutions for 4G LTE, 5G NR, and IoT
Stay ahead of the technology curve with our future-proof SIM cards. We go beyond basic GSM to provide cards for the most demanding applications.
Custom SIM Cards for 4G LTE & 5G NR Networks
- USIM / LTE SIM Cards: High-speed cards for modern networks, not GSM-only.
- 4G LTE/WCDMA Blank Cards: Perfect for 4G VoLTE tester setups and multi-network applications.
- Programmable 5G SIM Card: Fully compliant with 5G NR 3GPP R16 SA (Standalone) specifications.
- 5G SA 128k SIM / 5g usim: Optimized for the latest standalone 5G core networks.
- SUCI SIM Card: Implement Subscription Concealed Identifier for enhanced 5G security testing.
IoT, M2M, and Evaluation SIM Cards
- IoT/Evaluation SIM Cards: Ideal for prototyping and deploying M2M devices.
- NFC SIM Cards: Enable sim wallet nfc and contactless payment or access solutions, a growing segment in the sim cards near field communication market.
- White Label MVNO SIM Cards: We supply blank sim cards for MVNOs to brand and provision as their own.
- Java SIM Card: Custom applets can be loaded for specialized applications.
We offer all standard form factors (2FF / 3FF / 4FF SIM Cards), including nano-usim and half simcard lte trio, ensuring compatibility with any device.
A developer programming a white HKCARD blank SIM card using pySim tools, highlighting compatibility with sysmoISIM-SJA2 and open-source 5G stacks like Open5GS.
Your Questions Answered: FAQ about HKCARD Programmable SIMs
Q1: What is a programmable SIM card?
A programmable SIM card, also known as a blank SIM or writable SIM, is a card with a re-writable file system. It allows users to set network parameters like IMSI, Ki, and OPc, making it ideal for testing, development, and research.
Q2: Are your SIM cards a direct replacement for the sysmoISIM-SJA2?
Yes. Our compatible cards offer the same functionality as the sysmoISIM-SJA2 (SJA2), work with the same tools like pySim, and are a more available and competitively priced alternative.
Q3: Can I create a custom 5G SA SIM card?
Absolutely. We provide programmable 5G SA 128k SIM cards that allow you to configure all necessary parameters for connecting to a private or test 5G Standalone network.
Q4: Do you sell SIM cards in bulk for wholesale?
Yes, HKCARD is a sim cards wholesale supplier. We offer competitive pricing on bulk sim orders for MVNOs, large-scale IoT deployments, and enterprise labs.
Q5: What programming tools do I need?
Our SIMs are compatible with standard PC/SC card readers and open-source software like pySim. We can provide guidance on the necessary sim personalize tools.
Q6: What capacities do you offer?
We offer a range from standard cards to high-capacity 128k USIM, 256k SIM, and 512k SIM cards for applications requiring more storage, such as Java Card applets or extensive profiles.
Q7: Do you offer dummy SIM cards for testing?
Yes, we provide dummy sim cards and fake sim cards that have the physical form factor of a SIM but no electrical components, perfect for mechanical testing of devices. We even have models like a dummy sim card airtel for specific needs.
Q8: Can your SIMs be used for NFC applications like parking?
Yes, our NFC SIM cards are perfect for integrated solutions like parking sim cards and secure access control systems.
Q9: What form factors are available?
We stock all modern form factors: 2FF (Mini), 3FF (Micro), and 4FF (Nano), often in a “trio” or “half simcard lte” punch-out format.
Q10: How do I get started with a writable IMSI SIM card?
Contact us! We can supply you with a writable IMSI SIM card and provide basic instructions. For qualified projects, we may offer writable IMSI SIM cards free of charge as samples.
Get in Touch with a Reliable SIM Card Manufacturer
Ready to take control of your mobile network testing and deployment? HKCARD is here to help. As a trusted sim card manufacturer and supplier, we are committed to your success.
Contact us today for a quote, to request samples, or to discuss your custom requirements.
HKCARD ELECTRONICS CO., LIMITED
📧 Email:byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp/Wechat: +8615817372512
Partner with HKCARD ELECTRONICS CO.,LIMITED and experience the difference that quality, expertise, and reliable supply can make.
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- Wholesale SIM Cards: Your Guide to Custom 4G/5G SIMs from HKCARD
- How to Program a SIM Card with pySim Using HKCARD’s Blank USIMs
- From NFC to 5G: The Ultimate SIM Card Solutions by HKCARD
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HKCARD ELECTRONICS CO., LIMITED
📧 Email:byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp/Wechat: +8615817372512
