

This product is a writable, programmable blank SIM/USIM card designed for telecom operator labs, private network testing, and engineering development. It is not a consumer SIM card for everyday phone use.
The card is delivered blank, which means it contains no active subscriber profile. To use it in a test environment, you must program it first with your own data and match it with your network/core settings.
Table of Contents
ToggleCard Name
LTE Blank USIM Card
Supported Networks (Card Capability)
- 4G FDD LTE
- WCDMA (3G)
- GSM (2G)
Note: Network access depends on the profile you write and the network you’re testing. A blank card will not provide service until personalized.
SIM Card Size (3-in-1)
One card supports three common formats:
- 2FF (Mini SIM / Standard)
- 3FF (Micro SIM)
- 4FF (Nano SIM)
This is convenient for labs that work with different phones, routers, and modem modules.
Writable / Programmable Features
Depending on your tools and access level, the card can be written with typical test parameters such as:
- ICCID
- IMSI
- Ki
- OPC
Who It’s For
This card is intended for:
- Telecommunications operators
- Engineering teams doing network registration/authentication testing
- Device manufacturers running modem and network validation
- Private LTE test projects and lab environments
Important Note Before Purchase
This is a professional engineering product. If you’re not familiar with SIM/USIM programming and telecom testing workflows, we do not recommend buying it—because the card will not work “out of the box” like a normal phone SIM.
If you tell us your use case (operator lab, private LTE, device QA) and the form factor you need most (2FF/3FF/4FF), HKCARD ELECTRONICS CO.,LIMITED can suggest the right blank card option for your testing setup.
HKCARD ELECTRONICS CO.,LIMITED
Whatsapp/wechat:+8615817372512
Skype/Teams:byron1681
Email:byronhan@cardmfg.com

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