Writable Blank 4G VoLTE ISIM/USIM Card for Telecom Operators
As global telecom infrastructure continues to expand, operators and system integrators require reliable, secure, and programmable SIM card solutions. HKCARD ELECTRONICS CO., LIMITED offers high-quality Writable Blank 4G VoLTE ISIM/USIM Cards designed specifically for telecom operators, mobile device setup, and 4G network deployment.
These blank SIM cards provide stable performance, broad network compatibility, and flexible installation options, making them ideal for professional telecommunications environments.
Wide Network Compatibility for 4G Operations
Our 4G VoLTE ISIM/USIM cards are fully compatible with:
- 4G FDD LTE
- WCDMA
- GSM
This ensures seamless connectivity across multiple telecom standards. Whether used for device configuration, SIM provisioning, or telecom network operations, these cards provide reliable performance in modern 4G environments.
Advanced Security with Milenage Algorithm
Security is critical in telecommunications. These SIM cards use the Milenage algorithm, a trusted authentication protocol widely adopted in mobile networks worldwide.
Each card includes:
- 128K chip memory for secure storage of subscriber information and network credentials
- COS (Card Operating System) pre-installed for efficient deployment
- Compliance with CE and FCC certifications, ensuring conformity with European and US regulatory standards
The built-in memory allows telecom operators to store essential subscriber data and authentication parameters securely.
Premium PVC Construction and Flexible Sizes
Manufactured from durable PVC material, the blank 4G VoLTE ISIM/USIM cards are built for stability and long-term use.
Physical Specifications:
- Card Body Dimensions: 85.6 mm × 54 mm (standard CR80 size)
- SIM Chip Size: 25 mm × 15 mm
- Thickness: 0.30mm – 0.84mm
- Plug-in Sizes: 2FF (Standard), 3FF (Micro), 4FF (Nano)
The convenient 3-in-1 design allows operators to easily adapt the SIM card to different device requirements without additional tooling. It fits mini, micro, and nano SIM slots commonly used in smartphones, routers, and small mobile 4G devices.
Designed for Telecom Operators
These writable blank SIM cards are intended for professional telecom use, including:
- Device setup and configuration
- 4G LTE deployment projects
- SIM provisioning for telecom services
- Network testing and operational management
For optimal performance and longevity, avoid exposing the SIM cards to excessive heat or moisture. Proper handling ensures the integrity of both the PVC body and embedded chip.
Why Choose HKCARD ELECTRONICS CO., LIMITED?
Based in Mainland China, HKCARD ELECTRONICS CO., LIMITED is a trusted supplier of smart card and telecom solutions. We focus on quality manufacturing, strict compliance standards, and professional customer service to support telecom operators worldwide.
If you are looking for reliable, programmable 4G VoLTE ISIM/USIM cards with global compatibility and certified quality, we are ready to support your business.
Contact Information
HKCARD ELECTRONICS CO., LIMITED
📧 Email: byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp / WeChat: +86 158 1737 2512
For bulk orders, technical specifications, or customized SIM solutions, please contact us directly.
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