Chameleon Ultra – Advanced RFID Emulator & Analyzer

The Chameleon Ultra is a next-generation LF + HF RFID emulation, cloning, and analysis tool, built on the NRF52840 platform and engineered for research, red teaming, and advanced RFID testing workflows. Designed as a modern evolution of the original ChameleonMini project, the Ultra brings significantly improved stability, expanded emulation capabilities, and full BLE control through companion apps.

Perfect for penetration testers, physical security professionals, access control researchers, and RFID hobbyists who need a highly portable device that supports UID changeability, tag emulation, cloning, cracking, and system testing.

📦 Included in This Listing — Exactly What You Receive

This package ONLY includes the following items:

• 1× Chameleon Ultra device

• 1× USB-A to USB-C cable (30cm)

• 1× USB-C OTG adapter

• 1× Micro-USB OTG adapter

No additional accessories are included.

Key Features

🔹 8 Independent Emulation Slots

Switch between multiple LF (125kHz) and HF (13.56MHz) tag profiles instantly.

🔹 Full Emulation Support

Program the device to behave like a wide variety of smart cards, including many commonly used access badges.

🔹 Tag Cloning / Writing

Read supported LF/HF tags and write the data to compatible blanks — ideal for lab work, testing, or replacing badges.

🔹 Key Cracking Support

Works with MIFARE Classic® and other chipsets using known key-recovery methods.

(Capabilities vary based on current firmware.)

🔹 BLE 5.0 + USB Connectivity

Control the device via MTools BLE or ChameleonUltraGUI, or use direct USB-C communication.

🔹 Multi-Platform Support

Compatible with iOS, Android, macOS, Windows, and Linux.

Technical Specifications

• Chipset: NRF52840

• Memory: 256KB RAM / 1MB Flash

• Frequencies: 125kHz LF & 13.56MHz HF

• Connectivity: Bluetooth BLE 5.0, USB-C

• Battery: Rechargeable LiPo (up to ~6 months standby)

• Controls: 2× programmable hardware buttons

• Visual Indicators: RGB LED system for slot and mode status

What You Can Do With It

Emulate

Simulate various LF/HF tag types for system testing and reader validation.

Clone

Copy supported tag data to blanks or internal emulation slots.

Analyze & Test

Assess reader performance, validate access systems, and identify configuration weaknesses.

Experiment & Develop

Modify or rebuild the open-source firmware to create custom workflows and tools.

Software Compatibility

• MTools BLE (iOS/Android)

• ChameleonUltraGUI (Windows/macOS/Linux)

• Official ChameleonUltra CLI

• Full open-source firmware from the RRG team

Important Notes

• Some chipsets and features (e.g., T5557, certain cracking flows) may still be in development.

• Ensure legal compliance and proper authorization before testing or copying any credentialed media.

• Intended for security research, auditing, and lawful testing only.

Why Buy From STS Collective

• 🇺🇸 Fast domestic U.S. shipping

• ✔️ Curated tools for red teams, RF researchers, and access control professionals

• ✔️ Direct support from an experienced operator—not a dropship reseller

• ✔️ Secure, protective packaging with tracking