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Five small black round NFC key fobs on metal chains

Viator Gear BQUS-213DJK-5 NFC keyholder 5pcs black NTAG213 137 bytes

SKU CH-W991-GQCPZ MPN BQUS-213DJK-5

Set of five black NTAG213 NFC key fobs with 137 bytes memory for smartphones and access control

  • SizeSmall
  • ColorBlack
  • Color MappingBlack
  • AgeAdult
  • MaterialStainless Steel
  • FeaturesPVC + Ntag213 + epoxy material, Black-5 Pcs
  • Five ready-to-program key fobs for instant NFC tasks
  • NTAG213 chip stores 137 bytes for links and commands
  • Stainless-steel body with epoxy coating survives daily carry
  • 56 MHz frequency works with every NFC phone
  • Ten-year life rated for 100000 read-write cycles

Pack of five NTAG213 key fobs

The set contains five black NFC key fobs built around an NTAG213 chip with 137 bytes of user memory. Each fob measures 3.35 by 3.0 by 0.15 cm and includes a stainless-steel chain for attaching to keys or bags. The PVC and epoxy construction is rated for ten years or 100000 write cycles.

NFC interface constraints

Communication occurs at 13.56 MHz with a read range of up to 10 cm depending on the reader. The tags cannot be read or written when placed on a metal surface or in a strong magnetic field. Some iPhone models can only read data passively and cannot write to the tags.

137-byte capacity and limits

The 137-byte NDEF Type 2 memory suits short records such as URLs, Wi-Fi credentials, contact cards or simple automation triggers. It cannot store larger payloads such as amiibo data or extended multimedia links. The chip supports write locking so tags can be made read-only after programming.

Highlights

  • Five ready-to-program key fobs for instant NFC tasks
  • NTAG213 chip stores 137 bytes for links and commands
  • Stainless-steel body with epoxy coating survives daily carry
  • 56 MHz frequency works with every NFC phone
  • Ten-year life rated for 100000 read-write cycles

Specifications

BrandViator Gear
ModelBQUS-213DJK-5
Part NumberBQUS-213DJK-5
SizeSmall
ColorBlack
Color MappingBlack
AgeAdult
MaterialStainless Steel
FeaturesPVC + Ntag213 + epoxy material, Black-5 Pcs
Care InstructionsHand Wash
Sports TeamNO

Questions about this item

Why choose the 5-pack of NTAG213 key fobs over a single unit?

The 5-pack gives you multiple fobs to program for different tasks — Wi-Fi sharing, smart-home triggers, access control — so each keychain stays dedicated to one automation.

What does the 137-byte memory actually hold in daily use?

137 bytes stores a URL, a short text note, a vCard snippet or a Wi-Fi credential — enough for tap-to-connect actions but not for photos or large files.

How does the 13.56 MHz NFC interface limit real-world range?

The 13.56 MHz chip reads at 0–10 cm depending on the phone's antenna; you must tap the fob close to the back of the device, and metal surfaces block the signal.

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