Hikvision S50+TK4100 Dual Frequency Access Control Card with 13.56MHz & 125KHz Reading, PVC Thin Card, Contactless Smart Design
- Sku: S50+TK4100
- Vendor: SecurityAustralia
Built as a dual-frequency access control card for sites running mixed-reader environments, the S50+TK4100 operates on both 13.56MHz and 125KHz frequencies in a single contactless PVC card. This makes it compatible with a wide range of legacy and modern readers without needing to issue separate credentials. A practical choice for facilities transitioning between older 125KHz infrastructure and newer smart card systems.
Why This Model
- Dual-frequency in 1 card: Supporting both 13.56MHz and 125KHz, this card works across legacy and modern readers simultaneously, eliminating the need to carry or issue multiple credentials.
- Contactless smart design: Tap-and-go operation reduces wear on both the card and reader, improving reliability in high-traffic entry points.
- Thin PVC form factor: Standard card dimensions and slim profile mean it fits conventional wallets and card holders, making day-to-day use practical for end users.
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Product Overview
Model: S50+TK4100
Who This Is For
For integrators and facilities managers who need a single credential that works across both legacy 125KHz proximity readers and modern 13.56MHz smart card systems. The S50+TK4100 dual frequency card is the practical answer when a site runs mixed-generation access control hardware - a common situation during staged upgrades, building acquisitions, or multi-tenancy environments where different reader generations exist on the same door schedule. Rather than issuing separate cards per reader type or forcing a full system cutover, this card carries both chips in one standard PVC form factor. It suits commercial buildings, schools, healthcare facilities, and corporate campuses where Hikvision access control readers are installed alongside older proximity infrastructure. The thin card profile fits standard card holders and lanyards without modification, keeping rollout straightforward for both administrators and end users.
What This Card Actually Does
Dual Frequency in One Card
The S50+TK4100 combines a 13.56MHz smart chip and a 125KHz proximity chip in a single PVC card. One credential works at both reader types without the user needing to carry or select between multiple cards.
13.56MHz Smart Card Layer
The S50 chip operates at 13.56MHz, supporting encrypted data exchange with compatible smart card readers. This layer is suited to Hikvision access control panels and modern readers that require higher-security credential validation beyond a simple ID read.
125KHz Proximity Compatibility
The TK4100 chip runs at 125KHz, making this card readable by standard EM proximity readers. Sites that still operate older proximity-based door controllers can issue this card without replacing existing reader hardware during a transition period.
Contactless Operation
Both chips are read contactlessly - no insertion, no contact pad. Users present the card to the reader at close range. This reduces wear on both the card and reader, and keeps throughput fast at high-traffic entry points like staff entrances and carparks.
Standard PVC Thin Card Format
Built to standard ISO card dimensions in a thin PVC format, so it fits existing lanyards, card holders, and wallet slots without modification. Administrators can issue these cards immediately without sourcing specialised accessories or reprinting badge templates.
Who Buys This Model
- Access Control Integrators: Running phased upgrades where some doors have been migrated to 13.56MHz Hikvision readers and others still run 125KHz proximity hardware - this card bridges both generations during the transition.
- Facilities Managers at Multi-Tenancy Buildings: Managing a mix of reader types across floors or tenancies without wanting to issue separate card types to staff who need access at multiple points.
- Schools and Campuses: Issuing a single staff or student credential that works at newer smart card readers on main entries and older proximity readers on secondary gates or car parks.
- Corporate Site Administrators: Standardising on one card format across a national or multi-site organisation where reader infrastructure varies between locations.
Honest Assessment
The S50+TK4100 solves a real and common problem in access control deployment: mixed reader generations on the same site. Carrying both a 13.56MHz smart chip and a 125KHz proximity chip in a single standard-format card removes the need to issue dual credentials or rush infrastructure upgrades before staff cards can be rolled out. The contactless design keeps throughput high and the standard PVC form factor means no changes to existing lanyard or badge holder stock. What this card does not do is replace the reader or controller - it is a credential only. Sites that require card printing, photo ID badging, or proximity with specific proprietary encoding (such as HID Corporate 1000 or certain Indala formats) should confirm reader compatibility before purchasing. For volume credential orders or system integration queries, the team at Security Australia can assist with compatibility checks against specific Hikvision reader and panel combinations.
Before You Buy
Compatibility Note: The 125KHz TK4100 chip is a read-only EM proximity chip - it transmits a fixed ID and cannot be written to or enrolled with custom data. Confirm your 125KHz readers accept standard EM4100/TK4100 protocol before ordering in volume. The 13.56MHz S50 chip is compatible with Hikvision access control readers and panels that support Mifare-based smart card enrolment.
Volume Orders: If you are issuing these cards across a large workforce, plan your enrolment workflow ahead of time. Each card will need to be enrolled into the Hikvision access control platform (for the 13.56MHz chip) and separately registered with any legacy 125KHz controller (using the card's EM ID). Running both enrolment processes in parallel during a site rollout avoids delays at go-live.
Quick Fit Check
- Good match if: Your site runs both Hikvision 13.56MHz smart card readers and older 125KHz EM proximity readers, and you want a single card that works at all doors without issuing duplicate credentials.
- Good match if: You are mid-way through a staged upgrade from legacy proximity to smart card access control and need a bridging credential that keeps operations uninterrupted during the transition.
- You may need a different model if: Your site uses only one reader frequency - a single-frequency Mifare or EM card will be simpler to manage and may be more cost-effective for single-technology deployments. Check the full range of Hikvision access control credentials available on securityaustralia.com.au.
Key Features & Technical Specifications
Real-World Scenarios
How It Compares
- Choose this if: Your site has both 13.56MHz Hikvision smart card readers and 125KHz EM proximity readers active at the same time and you want one card that works across all of them.
- You may need a different model if: Your entire site runs a single reader frequency - a single-frequency Mifare S50 card or a standard EM proximity card will be simpler to manage and enrol. Both types are available at securityaustralia.com.au.
- Pairs well with: Hikvision access control readers and door controllers that support Mifare 13.56MHz smart card enrolment, used alongside any standard EM4100-compatible 125KHz proximity reader.
Common Questions
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Will this card work with my existing EM proximity readers?
Yes, provided your readers accept standard EM4100/TK4100 protocol at 125KHz. The TK4100 chip in this card transmits a fixed unique ID at 125KHz that is compatible with the vast majority of standard EM proximity readers. It will not work with proprietary proximity formats such as HID Corporate 1000 or certain Indala protocols - confirm your reader's accepted formats before purchasing in volume. -
Does this card work with Hikvision access control panels and readers?
Yes. The S50 chip operates at 13.56MHz and is compatible with Hikvision access control readers that support Mifare smart card enrolment. The card is enrolled into the Hikvision access control platform in the same way as a standard Mifare S50 card, using the card's unique chip ID. -
Can the 125KHz TK4100 chip be reprogrammed with a custom ID?
No. The TK4100 is a read-only proximity chip - it carries a factory-set unique ID that cannot be overwritten or reprogrammed. The card is enrolled into your access control system by reading and registering that fixed ID, not by writing to the chip. -
Does both chips activate at the same reader, or does each chip only respond to its matching frequency?
Each chip only activates at its matching reader frequency. When presented to a 13.56MHz smart card reader, only the S50 chip responds. When presented to a 125KHz proximity reader, only the TK4100 chip responds. There is no cross-activation or interference between the 2 chips. -
Can this card be used for photo ID badging?
Yes, with the right printer. The card is a standard PVC thin card format, which is compatible with most direct-to-card ID badge printers that accept CR80 PVC card stock. Confirm your printer accepts the specific card thickness before printing. The card surface can be printed with staff photos, names, and logos as with any standard PVC proximity card. -
How many cards do I need to order and is volume pricing available?
The S50+TK4100 is available through Security Australia for individual and volume orders. For large rollouts, contact the team directly to discuss quantities and ensure you have the right card type confirmed against your specific reader infrastructure before committing to a bulk order.
Downloads & Resources
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Hikvision S50+TK4100 Dual Frequency Access Control Card with 13.56MHz & 125KHz Reading, PVC Thin Card, Contactless Smart Design
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