📌 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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