I’m the founder and CEO of HKCARD ELECTRONICS CO., LIMITED. For more than 15 years I have built a factory‑direct supply chain that delivers 4G Nano+NFC Factory Sim Card 1.8v4G Nano+NFC Factory Sim Card 3.6v4G Nano+NFC Factory Sim Card 1.62v‑5.5v, and the flagship 4G Nano+NFC Factory Sim Card V3.0 C‑CLASS to telecom operators, banks, governments, and IoT innovators worldwide.

Every product that leaves my plant is inspected, programmed, and shipped under my direct supervision – that’s why my customers call me “the most reliable NFC‑SIM supplier”.


The Complete Product Line We Offer

ProductVoltageKey FeaturesTypical Use
4G Nano+NFC Factory Sim Card 1.8v1.8 VUltra‑low power, secure element, OTAIoT sensors, wearables, legacy devices
4G Nano+NFC Factory Sim Card 3.6v3.6 VStandard smartphone compatibility, high‑speed LTEMobile phones, tablets, POS terminals
4G Nano+NFC Factory Sim Card 1.62v‑5.5v1.62‑5.5 VUniversal voltage range, robust designGlobal roll‑outs, multi‑vendor environments
4G Nano+NFC Factory Sim Card V3.0 C‑CLASSMulti‑voltage256 KB EEPROM, EAL6+ security, OTA provisioning, sim swp readyEnterprise banking, secure transit, digital ID
Factory Sim Card V3.0 C‑CLASS (non‑NFC version)Multi‑voltageSame security core, no NFC coilPure data‑only applications
NFC SIM Card / NFC SIM / NFC‑SIM / sim nfc / nfc simMulti‑voltageContactless payment, access control, JavaCard 3.0Mobile wallets, transport tickets
nfc sim cardsMulti‑voltageCustom memory, branding optionsPrivate‑label telecom projects
nfc white blank cardMulti‑voltagePlain white substrate, ready for on‑demand printingRapid prototyping, promotional campaigns
nfc sim karte / kartu nfc / nfcsim / nfc usim / nfc simkaartMulti‑voltageMultilingual file‑system, regional network profilesInternational operators, cross‑border services
test sim card / nfc sim kart / tarjeta SIM NFCMulti‑voltageDeveloper kits, OTA tools, full sim swp supportLab testing, certification, R&D

All of the above are ISO 9001CERoHS, and REACH certified, and I personally guarantee that each batch passes our in‑house security and performance labs before it ships.


Why our NFC‑SIM Cards Stand Out

  1. Voltage Flexibility – I produce 1.8 V3.6 V, and the universal 1.62 V‑5.5 V versions so you never have to redesign hardware when you expand to new markets.
  2. Security First – The Factory Sim Card V3.0 C‑CLASS and the 4G Nano+NFC Factory Sim Card V3.0 C‑CLASS are EAL6+ certified, support OTA key updates, and include a tamper‑resistant secure element.
  3. Full sim swp Integration – My cards expose the Single Wire Protocol, enabling truly contactless mobile payments without extra chips.
  4. Brand‑Ready Customization – From nfc white blank card printing to nfc sim karte logo embossing, I can deliver a fully branded package in as little as 48 hours.
  5. Global Compatibility – nfc sim kaartkartu nfcnfcsim, and nfc usim are pre‑loaded with regional network parameters, so you can launch in Europe, Asia, Africa, or the Americas with a single SKU.

 FAQ

Q: What is the difference between the 4G Nano+NFC Factory Sim Card 1.8 V and 3.6 V models?
A: The 1.8 V version is optimized for low‑power IoT and legacy devices, while the 3.6 V model matches the power requirements of most modern smartphones. Both support the same secure NFC element and OTA features.

Q: How does the 4G Nano+NFC Factory Sim Card V3.0 C‑CLASS improve security?
A: It incorporates an EAL6+ certified secure element, 256 KB of EEPROM, and OTA key rotation, making it ideal for banking, transit, and digital‑ID applications.

Q: What is sim swp and why do I need it?
A: sim swp (Single Wire Protocol) creates a direct, encrypted link between the SIM’s secure element and the phone’s NFC antenna, enabling contactless payments, ticketing, and access control without extra hardware.

Q: Can I get a custom‑printed nfc white blank card for a marketing campaign?
A: Yes. I offer full‑color CMYK printing, QR‑code engraving, and serial number encoding on the nfc white blank card with a 48‑hour turnaround for orders over 1,000 units.

Q: Are your test sim card kits ready for developers?
A: Absolutely. Each test sim card kit includes OTA provisioning tools, a full sim swp stack, and documentation for Android, iOS, and embedded Linux platforms.


Technical Snapshot 

ItemVoltageMemorySecurity LevelNFCOTA
4G Nano+NFC 1.8 V1.8 V32 KBEAL4+YesYes
4G Nano+NFC 3.6 V3.6 V64 KBEAL5+YesYes
4G Nano+NFC 1.62‑5.5 V1.62‑5.5 V128 KBEAL5+YesYes
V3.0 C‑CLASS (NFC)Multi256 KBEAL6+Yes (Secure Element)Yes
V3.0 C‑CLASS (no NFC)Multi256 KBEAL6+NoYes

 
#4GNanoNFC
#NFCSIMCard
#FactorySimCard
#SimSWP
#NFCWhiteBlankCard
#NFCSIMKarte
#KartuNFC
#TestSimCard
#TarjetaSIMNFC
#SmartCardManufacturing

 

  1. “How to Choose the Right 4G Nano+NFC Factory Sim Card Voltage (1.8 V, 3.6 V, or 1.62‑5.5 V) for Your Project”
  2. “Why the 4G Nano+NFC Factory Sim Card V3.0 C‑CLASS Is the Most Secure NFC‑SIM on the Market”
  3. “Factory‑Direct NFC‑SIM Card Solutions: Custom nfc white blank card, sim swp, and Global Compatibility”
  4. “Test Sim Card & NFC‑SIM Kart Kits: Accelerate Development with OTA and SWP Support”
  5. “NFC‑SIM, NFC‑SIMKarte, Kartu NFC, and Tarjeta SIM NFC – All the International Variants You Need in One Supplier”

 

  1. Q: Which voltage should I select for low‑power IoT devices?
    A: Choose the 4G Nano+NFC Factory Sim Card 1.8 V – it consumes the least power while still offering full NFC functionality.

  2. Q: How does the V3.0 C‑CLASS improve OTA updates?
    A: The card’s secure element supports encrypted OTA key rotation, allowing you to push new credentials without physical access.

  3. Q: Can my brand’s logo be printed on a blank NFC card?
    A: Yes, the nfc white blank card can be fully customized with logos, QR codes, and serial numbers.

  4. Q: Are NFC‑SIM cards compatible with Apple Pay and Google Pay?
    A: Absolutely. Our NFC‑SIMNFC‑SIM Karte, and nfcsim are sim swp‑enabled and certified for major mobile wallets.

  5. Q: Do you provide test SIMs for network certification?
    A: We ship test sim card kits worldwide within 48 hours, complete with OTA tools and SWP support.


Let’s Get Started

If you need a reliable source for 4G Nano+NFC Factory Sim Card 1.8 V4G Nano+NFC Factory Sim Card V3.0 C‑CLASSnfc sim cardsnfc white blank card, or any of the other products listed above, just drop me a line. I personally review every quotation, guarantee factory‑direct pricing, and ensure rapid delivery to any continent.

Contact HKCARD Today​

Partner with HKCARD ELECTRONICS for ​OEM SIM cards​
📞 ​Contact us now​:byronhan@cardmfg.com
byronhan1@gmail.com
byron@cardmfg.com
My skype/Teams is byron1681
Whatsapp /Phone Number:+8615817372512
🌐 ​Visit our website​: https://www.cardmfg.com/

HKCARD ELECTRONICS CO., LIMITED – I don’t just manufacture SIM cards; I deliver secure, scalable connectivity that powers the future.

#4GNanoNFC
#NFCWhiteBlankSIMCar1.8v