Cheap USB 13.56 MHz HF reader (ACR122U / PN532 breakout), the standard libnfc target for reading and dumping ISO 14443-A MIFARE cards and for running the mfoc/mfcuk crackers. HF only; no LF, and weaker than a Proxmark for adversarial work.
Lifecycle not assessed: nobody has checked yet whether this tool is still maintained, sold or working. Check the project's own page before relying on it.