



In the fast-paced world of modern telecommunications, network engineers, developers, and telecom operators require highly flexible and reliable hardware for network testing and deployment. HKCARD ELECTRONICS CO.,LIMITED is proud to offer our premium Blank 4G VoLTE ISIM/USIM Cards, engineered specifically for professional programming, network development, and telecom solutions.
Whether you are configuring parameters for a local network or testing LTE equipment, our programmable SIM cards deliver the compatibility, security, and performance your projects demand.
Table of Contents
ToggleAdvanced Technical Specifications
Our blank USIM cards are built to industry standards, ensuring seamless integration with modern cellular networks.
- Network Compatibility: Fully supports GSM + WCDMA + 4G FDD LTE, and GSM + WCDMA + 4G TDD LTE.
- Technology: 4G LTE USIM with full VoLTE (Voice over LTE) support.
- Algorithm & Security: Built with the highly secure Milenage algorithm.
- Memory & Hardware: 128k chip memory, 6-pin contact, Native OS, and durable PVC material.
- Operating Voltages: Compatible with 1.8V, 3.3V, and 5V devices.
- Universal Fit: Features a 3-in-1 plug-in size design, easily snapping into Standard SIM (2FF), Micro SIM (3FF), and Nano SIM (4FF) slots.
Fully Programmable and Rewritable
What sets our 4G ISIM cards apart is their complete programmability. These cards are 100% rewritable. For telecom engineers and developers, this means you can easily write and modify essential network parameters, including:
- ICCID (Integrated Circuit Card Identifier)
- IMSI (International Mobile Subscriber Identity)
- KI (Authentication Key)
- OP / OPC (Operator Variant Algorithm Configuration Field)
Need help programming? We’ve got you covered. To ensure our clients can utilize these cards immediately, HKCARD ELECTRONICS CO.,LIMITED can provide the necessary card reader and free programming software to help you input your real parameters securely and efficiently.
Important Usage Guidelines: What You Need to Know
To ensure our customers get exactly what they need, please note the following before purchasing:
- These are strictly BLANK SIM cards. They do not come with a phone number, data plan, or cellular service pre-installed.
- Not for direct consumer use. Because they lack service data, these cards cannot be used directly in equipment upon arrival. They cannot be used for GPS tracking devices or to register online accounts (such as social media or messaging apps). They must be programmed with real parameters by the user.
Packaging and Bulk Customization Options
Each standard package includes 100 x PCS 4G Blank VoLTE ISIM Cards (compatible with 4G LTE USIM). Electronic commercial invoices are readily available upon request—simply contact us, and we will generate and email it to you.
Looking for a larger scale solution?
For enterprise clients and telecom operators requiring more than 1,000 pieces, we offer comprehensive customization services. This includes custom card printing, unique card designs, and pre-loading input data files directly onto the chips prior to shipping.
Partner with HKCARD ELECTRONICS CO.,LIMITED
When it comes to telecom hardware, precision and reliability are non-negotiable. Trust HKCARD ELECTRONICS CO.,LIMITED to provide the premium smart card solutions your business needs.
Get in touch with us today for orders, software requests, or customized solutions:
Company: HKCARD ELECTRONICS CO.,LIMITED
Email: byronhan@cardmfg.com
Website: https://www.cardmfg.com/
WhatsApp / WeChat: +86 158 1737 2512
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#4GUSIM
#ProgrammableSIM
#TelecomOperator
#HKCARDElectronics

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