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Toggle📌 What Is This SIM Card?
HKCARD ELECTRONICS CO.,LIMITED offers a programmable blank SIM card, also known as a USIM (Universal Subscriber Identity Module). It’s designed for OEMs, telecom resellers, and IoT developers who need to write custom parameters like IMSI, KI, OPC, ACC, and Class 15 — all before deploying the card to end users.
This card is blank out of the box — no pre-loaded data. You program it yourself using standard SIM personalization tools.
🔧 Technical Specifications
🎯 Type
- Programmable SIM (USIM / ISIM compatible)
- Blank — ready for your own personalization
🎨 Color Options
- White (standard)
- Gray or custom color (upon request)
🧩 Module Design
- Dual-module — 2 independent SIMs on one card
- Can also be configured as single-module if needed
📏 Form Factor
- 3-in-1 — supports:
- 2FF (Mini-SIM)
- 3FF (Micro-SIM)
- 4FF (Nano-SIM)
→ Fits almost any smartphone, modem, or IoT device
📶 Supported Networks
- GSM (2G)
- WCDMA / UMTS (3G)
- LTE / 4G
🖥️ Programming Capabilities
- Write and edit:
- IMSI (International Mobile Subscriber Identity)
- KI (Authentication Key)
- OPC (Operator Code)
- ACC (Access Control Code)
- Class 15 (for carrier-specific settings)
🔐 Security & Memory
- Memory Type: EEPROM
- Access Protection: PIN / PUK
- Authentication Algorithms: MILENAGE / COMP128 (firmware dependent)
- Operating Temp: -25°C to +85°C
- Data Retention: ≥ 10 years
- Rewrite Cycles: ≥ 100,000
- Durability: Resistant to vibration, humidity, and mechanical wear
📦 Compatibility
This SIM card works with:
- Smartphones (Android & iOS devices with SIM slot support)
- LTE/4G routers and modems
- M2M (Machine-to-Machine) devices
- IoT gateways, trackers, and remote sensors
- Any device that accepts 2FF/3FF/4FF SIM cards
💼 Who Uses This?
- Telecom OEMs — for custom SIMs in mobile devices
- IoT Developers — for secure, programmable connectivity modules
- Mobile Network Operators — for pre-provisioned SIMs for enterprise clients
- Resellers & Distributors — for white-label or private-label SIM solutions
📞 Contact HKCARD ELECTRONICS CO.,LIMITED
Need samples, bulk orders, or custom programming?
We’re ready to support your project.
📧 Email: byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp / WeChat: +86 158 1737 2512
#ProgrammableSIM #BlankSIMCard #USIMCard #IoTConnectivity #HKCARDElectronics




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