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WCDMA Test White Card / GSM Test SIM Card for China Unicom 3G Network Testing

HKCARD ELECTRONICS CO., LIMITED provides professional WCDMA test white cards, GSM test SIM cards, and China Unicom 3G (WCDMA/UMTS) network test cards for legitimate telecom testing scenarios. These cards are commonly used by mobile phone manufacturers, module makers, laboratories, and service providers to validate device compatibility, network behavior, and field performance.

If you are looking for a China Unicom 3G mobile phone test white card or a WCDMA/GSM testing SIM, HKCARD can support stable supply, consistent quality, and clear communication—making your testing process more efficient.

What Is a WCDMA Test White Card?

A WCDMA test white card (often called a test SIM/USIM white card) is a test-oriented SIM/USIM card used to verify functions such as:

  • Network registration and basic connectivity (authorized environments)
  • Device interoperability testing for WCDMA/UMTS 3G and GSM 2G
  • Lab validation, QA sampling, and engineering verification
  • Field tests for signal performance and handset stability (with proper authorization)

These products are typically used in controlled test workflows where the customer has legal authorization to perform carrier or lab testing.

Supported Testing Scenarios (GSM + WCDMA / China Unicom 3G)

HKCARD test card solutions can be applied to:

  • GSM testing for 2G devices and backward compatibility
  • WCDMA/UMTS testing for 3G device/network verification
  • China Unicom 3G (WCDMA) network testing projects (where applicable and authorized)
  • Mobile phone prototype testing, module debugging, and production QA checks
  • Engineering evaluation for antennas, RF behavior, and network stability

Key Options Available

Depending on your project requirements, HKCARD can provide options such as:

  • Form factors: 2FF (Mini SIM), 3FF (Micro SIM), 4FF (Nano SIM), or multi-cut (2FF/3FF/4FF)
  • Card body: standard white card appearance (test-friendly), optional printing/marking for batch control
  • Packaging: bulk packing or customized packing for lab/production workflows
  • Customization support: labeling, serial/batch identification, and manufacturing consistency for repeated testing

Note: HKCARD supplies test card products for legitimate testing and authorized use. Please ensure compliance with local laws, carrier requirements, and internal security policies.

Why Choose HKCARD ELECTRONICS CO., LIMITED?

  • Stable manufacturing and consistent card quality for repeat test batches
  • Fast response for specifications, sampling, and production coordination
  • Experience in card production workflows (printing, finishing, packing, batch management)
  • Export-ready communication and support for international customers

If you need a dependable supplier for WCDMA test SIM white cards, GSM test cards, or China Unicom 3G testing cards, HKCARD is ready to assist.

Contact HKCARD ELECTRONICS CO., LIMITED

HKCARD ELECTRONICS CO., LIMITED
📧 Email: byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp / WeChat: +86 158 1737 2512