RFID fundamentals
Choosing LF, HF, NFC or UHF
Start with the reader and application. The right frequency is only one part of a compatible system.
Read the guideRFID & NFC product manufacturer
RFID & NFC products.
Made for your system.
Roxtron Limited manufactures custom RFID cards, NFC tags, key fobs, wristbands and embedded transponders. Over two decades of experience, with the chip, construction, printing and encoding specified for your application.
LF 125 kHz / HF 13.56 MHz / NFC / UHFCards · Labels · Key fobs · Wristbands · Disc tags
Product focus / RXK04
RXK04.
Configured for your system.
The RXK04 ABS key fob brings a compact 40 × 33 × 4 mm enclosure to access and identification projects. Specify the chip, color, printing and numbering for your system.
40 × 33 × 4 mmDimensions
6 gWeight
The Roxtron portfolio
Choose the physical format.
03 product families
Smart cards
Credentials for access, identity and integrated business systems.
05 product families
RFID & NFC labels
Connect products, packaging and assets to digital workflows.
05 product families
Key fobs
Compact credentials for access control and identification.
07 product families
Wristbands
Wearable identification for hospitality, leisure and events.
02 product families
Disc & embedded tags
Sealed transponders for integration into your products.
07 product families
MIFARE® credentials
Choose the chip family your reader and application require.
IC selection
IC selection and system compatibility.
Frequency, protocol, memory and authentication belong in the same specification. Explore 77 catalog chip entries and 953 documented product combinations.
NFCNTAG213CredentialsMIFARE DESFire EV3 4KLow frequencyEM4200Vicinity HFICODE SLIX2Application engineering
From requirement to deployment.
Access & identity
Cards and key fobs for specified credential systems.
Explore applicationHospitality & leisure
Credentials for guest access and leisure facilities.
Explore applicationEvents & membership
Portable and wearable event credentials.
Explore applicationRetail & inventory
Item identification for inventory and supply chain operations.
Explore applicationConnected products
NFC identification for connected product services.
Explore applicationOEM integration
Identification, built into your product.
Explore applicationRFID Education
The science of identification.
A structured reference covering RFID history, radio communication, protocols, memory, security and system qualification.
Explore RFID EducationTechnical resources
Make an informed specification.
NFC engineering
NTAG213, NTAG215 or NTAG216?
Choose memory for the encoded message, then validate the tag in its real application.
Read the guideCredential engineering
Specify a MIFARE credential correctly
Chip family, generation, memory and personalization all belong in the specification.
Read the guideManufacturing with clarity
Know what you are ordering.
From the first enquiry to a repeat order, keep the product, chip and acceptance criteria in one clear specification.
A defined company
Roxtron Limited is based in Hong Kong, with over two decades of RFID manufacturing experience and a catalog spanning six product ranges.
Company profile and capabilitiesTraceable technical information
Read the product dimensions and IC requirements together. Semiconductor references explain the chip; the approved specification defines the finished product.
Our technical publishing standardsAn agreed production brief
Specify artwork, encoded data, sample checks and required documents before production. Carry the approved configuration into repeat orders.
Production approval and quality requirementsTechnical and commercial enquiries