
HKCARD Electronics | Blank 4G VoLTE ISIM USIM Cards, 4G LTE USIM & Smart Card Readers
HKCARD ELECTRONICS CO., LIMITED – a trusted mobile phone SIM cards supplier with 10+ years experience. Blank 4G VoLTE ISIM USIM Cards, Blank 4G LTE USIM, programmable SIM cards, HID Omnikey 3121 Smart Card Reader, SIM card reader writer kits. Wholesale & OEM.
https://www.hkcardelectronics.com/blank-4g-volte-isim-usim-sim-cards-supplier/
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ToggleHKCARD Electronics – Trusted Partner in the Mobile Phone SIM Cards Industry
HKCARD ELECTRONICS CO., LIMITED is a specialized manufacturer and exporter in the mobile phone SIM cards industry, serving global telecom operators, system integrators, labs, IoT companies, resellers and wholesalers.
With more than ten years of experience, HKCARD Electronics focuses on high‑quality SIM cards, Blank 4G LTE USIM, Blank 4G VoLTE ISIM USIM Card solutions and professional card reader and SIM card programmer tools.
Our goal is simple:
- Provide stable, programmable SIM and USIM products
- Offer reliable card readers and programmers
- Support customers with fast delivery, technical documentation, and OEM/ODM service
Main Product Lines from HKCARD Electronics
1. Blank 4G VoLTE ISIM USIM Cards & Blank 4G LTE USIM
HKCARD supplies a full range of 4G LTE and VoLTE‑ready programmable cards, including:
- Blank 4G VoLTE ISIM USIM Card
- Blank 4G LTE USIM for LTE data and voice applications
- Support for VoLTE, 2G/3G/4G and many test environments
Typical features:
- 128K memory capacity for operator profiles and application data
- Programmable ICCID, IMSI, ADM, KI, OPC, OP fields
- Support for standard authentication algorithms (commonly used in LTE/VoLTE networks)
- Ideal for R&D, SIM testing, OTA platform verification, operator SIM personalization and training
Product example used by many of our customers:
Blank 4G VoLTE Program SIM Card ISIM USIM Card 128k LTE Programmable USIM Card ICCID IMSL ADM KI OPC OP With Milemage
This card is designed for professional users who need flexible, programmable 4G VoLTE ISIM/USIM cards for lab and field testing.
2. Bulk 3‑in‑1 Writable Programmable Blank SIM / USIM Cards (100pcs/lot)
For projects and production runs, HKCARD offers bulk packs of writable, programmable SIM cards:
100pcs/lot Writable Programable Blank SIM USIM Card 4G LTE WCDMA GSM Nano Micro SIM Card with Micro Nano Size 2FF 3FF 4FF 3 IN 1
Key advantages:
- Multi‑network support: 4G LTE, WCDMA, GSM
- 3‑in‑1 triple‑cut: Standard (2FF), Micro (3FF), Nano (4FF) in one card
- Writable and re-programmable for different testing or deployment scenarios
- Suitable for:
- SIM card solution providers
- Virtual operators (MVNO/MVNE)
- Education & training labs
- R&D and repair centers
These 100pcs/lot writable programmable blank SIM USIM cards help reduce unit cost while maintaining stable quality across the whole batch.
3. 4G LTE SIM Card Reader Writer Programmer Kits
To support SIM card development and customization, HKCARD supplies integrated reader writer programmer kits:
4G LTE SIM Card Reader Writer Programmer + 5PCS 128k 4G VoLTE Blank ISIM Cards + 1PC 2G3G4G5G 4.1.5 Ver SIM Card Software
This kit typically includes:
- A 4G LTE SIM card reader writer programmer (USB interface)
- 5 pcs 128K 4G VoLTE Blank ISIM Cards for immediate testing
- 2G/3G/4G/5G Ver 4.1.5 SIM card software for reading, writing and editing SIM/USIM profiles
Use cases:
- Personalization of test SIM and USIM cards
- Changing IMSI / ICCID values for internal network testing
- VoLTE function testing and protocol research
- Operator lab, device lab and QA teams
4. HID Omnikey 3121 Smart Card Reader
In addition to SIM‑focused programmers, HKCARD Electronics also offers standard smart card readers for ID, access control, PKI and desktop environments.
We supply the popular:
HID Omnikey 3121 Smart Card Reader – also known as
HID OMNIKEY 3121 Contact Smart Card Reader, USB 2.0 Desktop Card Reader, RoHS WEEE Certified, Two-tone Gray – R31210320-01
Highlights:
- USB 2.0 desktop card reader – plug and play on most operating systems
- Supports a wide range of ISO 7816 contact smart cards
- RoHS and WEEE certified, two‑tone gray industrial design
- Widely used in banking, e‑ID, digital signature, corporate access and secure login systems
By combining our SIM products with professional devices such as the HID Omnikey 3121 Smart Card Reader, customers can build complete telecom and smart‑card solutions.
Typical Applications of HKCARD SIM & USIM Products
Our Blank 4G LTE USIM, Blank 4G VoLTE ISIM USIM Card, and programmable SIM solutions are used in:
- Mobile network operators & MVNOs
- Test cards for new network launches (2G/3G/4G/5G)
- VoLTE and IMS service verification
- IoT & M2M projects
- Device SIM provisioning and pilot runs
- Private network SIM cards and custom profiles
- R&D laboratories & universities
- Protocol analysis, security research, network simulation
- Classroom and training lab equipment
- Repair centers & distributors
- Replacement SIMs for testing mobile phones
- Stock for branded or white‑label SIM projects
Why Global Customers Choose HKCARD ELECTRONICS CO., LIMITED
Over a decade in the mobile phone SIM cards industry
- Focused on SIM, USIM, ISIM and related card reader products
Stable quality & strict testing
- Each batch of Blank 4G LTE USIM and programmable SIM cards is tested for electrical and functional parameters
Broad, practical product range
- From single Blank 4G VoLTE ISIM USIM Cards to 100pcs/lot writable programmable blank SIM USIM cards
- From SIM card readers to HID Omnikey 3121 Smart Card Reader and desktop readers
Technical support & documentation
- Basic guidance for SIM card programming tools and usage
- Quick response by email or instant messaging
Flexible MOQ & wholesale pricing
- Small orders for testing and sampling
- Competitive prices for bulk and OEM/ODM projects
Worldwide shipment
- Experience shipping to Europe, North America, Asia, Middle East, Africa and Latin America
Quick Answers (FAQ) –
Q1: What products does HKCARD Electronics mainly supply?
HKCARD ELECTRONICS CO., LIMITED supplies Blank 4G VoLTE ISIM USIM Cards, Blank 4G LTE USIM, programmable SIM/USIM cards in 3‑in‑1 sizes, SIM card reader writer programmers, and HID Omnikey 3121 Smart Card Readers for telecom, IoT and smart‑card applications.
Q2: What is a Blank 4G VoLTE ISIM USIM Card used for?
A Blank 4G VoLTE ISIM USIM Card is a programmable SIM card used for LTE and VoLTE network testing, operator personalization, R&D, and development of IMS/VoLTE services. Users can write custom ICCID, IMSI and authentication keys with compatible SIM card software and programmers.
Q3: Do you offer 3‑in‑1 SIM card sizes (2FF/3FF/4FF)?
Yes. Our 100pcs/lot writable programmable blank SIM USIM card 4G LTE WCDMA GSM nano micro SIM card with micro nano size 2FF 3FF 4FF 3 IN 1 products support standard, micro and nano formats in a single triple‑cut card.
Q4: Can HKCARD provide card readers and software together with SIM cards?
Yes. We offer complete kits such as 4G LTE SIM Card Reader Writer Programmer + 5PCS 128k 4G VoLTE Blank ISIM Cards + 1PC 2G3G4G5G 4.1.5 Ver SIM Card Software, plus smart card readers like the HID OMNIKEY 3121 Contact Smart Card Reader, USB 2.0 Desktop Card Reader, RoHS WEEE Certified, Two-tone Gray – R31210320-01.
Q5: How can I get a quotation from HKCARD Electronics?
Send us your required quantity, product type (for example: Blank 4G LTE USIM, 100pcs/lot programmable SIM cards, HID Omnikey 3121 Smart Card Reader) and destination country. We will reply with price, lead time and shipping options.
How to Contact HKCARD Electronics
For quotations, samples or technical questions:
- Company: HKCARD ELECTRONICS CO., LIMITED
HKCARD ELECTRONICS CO.,LIMITED
Whatsapp/wechat:+8615817372512
Skype/Teams:byron1681
Email:byronhan@cardmfg.com
HKCARD ELECTRONICS CO., LIMITED is a Chinese/Hong Kong–based supplier specializing in mobile phone SIM cards, especially Blank 4G VoLTE ISIM USIM Cards, Blank 4G LTE USIM, writable programmable SIM/USIM cards (3‑in‑1 2FF/3FF/4FF) and related tools such as 4G LTE SIM card reader writer programmers and the HID Omnikey 3121 Smart Card Reader.
The company has 10+ years of industry experience, supports wholesale, OEM/ODM and lab testing needs, and provides global shipping and basic technical support.
- Wholesale Blank 4G LTE USIM & VoLTE ISIM Cards Supplier – HKCARD Electronics
- HKCARD Electronics: Programmable SIM Cards, 3‑in‑1 USIM & HID Omnikey 3121 Card Readers
- Professional 4G VoLTE ISIM USIM Cards and SIM Card Reader Writer Kits from HKCARD
- 100pcs/lot Writable Blank SIM USIM Cards 2FF 3FF 4FF – Reliable OEM Factory HKCARD
- HID OMNIKEY 3121 Smart Card Reader & 4G LTE SIM Programmers | HKCARD Electronics
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Best Regards
Byron
HKCARD ELECTRONICS CO.,LIMITED
Whatsapp/wechat:+8615817372512
Skype/Teams:byron1681
Email:byronhan@cardmfg.com






