Proxmark3 RDV4

Study low- and high-frequency RFID in detail.

LF RFIDHF RFIDUSBModular antennas

Price: €329+at lab401.com
Availability: Listed
Design: Open firmware

Where to buy · 2 shops

Compare with similar devices

For access-control research and testing. Copying or emulating credentials you do not own is a crime in most countries. Buyers are responsible for their local law.

Bring along: A computer and compatible client firmware.
Keep in mind: Wireless and standalone-power accessories are separate.

Source checked · Sep 16, 2026

Proxmark3 RDV4 — Image credit
Maker product image · RFID Research Group

(02) Blueprint

What’s published

Open firmware

Firmware (RRG/Iceman fork) is fully open, but no schematic or PCB source has ever been published for the RDV4 hardware revision itself.

Source 1

RfidResearchGroup/proxmark3firmwareGPL-3.06.1k

git clone https://github.com/RfidResearchGroup/proxmark3.git

Key parts 2

Atmel/Microchip AT91SAM7S512All AT91SAM7S devicesMCU (ARM7TDMI, 512 KB flash / 64 KB RAM)
Xilinx Spartan-II FPGAAll Spartan FPGA devicesRF signal processing FPGA

Research notes

Searched extensively (web + gh api tree of RfidResearchGroup/proxmark3) for RDV4-specific hardware files; none exist. The repo's doc/original_proxmark3/proxmark3.sch + .brd (Eagle) are for the ORIGINAL pre-RDV4 Proxmark3 (AT91SAM7S64, no smartcard slot/FPC) and were deliberately excluded here since they don't represent the RDV4 revision actually sold. AT91SAM7S512/Spartan-II confirmed via secondary sources; microchip.com blocked automated verification of its own datasheet page in this environment, so no datasheet URL is included.

Every link checked 2026-09-27.

Hand this device to your agent. Everything on this page, as clean Markdown and JSON: specs, shops, prices, design files, parts.

Markdown JSON

Made the Proxmark3 RDV4? Put the badge on your README; it links here, with every shop that sells it.

Specifications

Compute & radios

Controller: SAM7S512
External memory: 2 Mbit / 256 KB SPI flash
RFID frequencies: 125 kHz LF; 13.56 MHz HF
Antennas: Pretuned, replaceable LF/HF boards; optional longer-range antennas

Interfaces & body

Smart cards: SIM/smart-card reader
Controls: 1 button; 4 power LEDs and 4 mode LEDs
Dimensions: 54 × 87 × 10 mm
Enclosure: ABS
Expansion connector: FPC exposes ARM USART for peripherals; distinct from USB-CDC
Mobile software: Product page references Android Project Walrus; current app support unconfirmed

Client & firmware

Software target: RRG/Iceman defaults to RDV4; use matching client and device firmware versions
Build selection: PM3RDV4 target; choose standalone features at compilation
Bluetooth configuration: Blue Shark requires the BTADDON build option

Optional Blue Shark accessory

Wireless: Bluetooth 2.0 + EDR; separate add-on, not built-in BLE/Wi-Fi
Battery: 400 mAh accessory battery; not part of the base RDV4

What still needs checking

Tag support and operations depend on the installed firmware, selected build features and actual tag. This is not a promise to copy every RFID credential.
Confirm hardware subrevision, antenna package, accessories, battery inclusion and weight with the selected distributor.
The hardware page broadly advertises BLE/Wi-Fi expansion. The documented Blue Shark uses Bluetooth 2.0 + EDR; the UART notes describe Wi-Fi bridging as a future possibility.