RFID CARD

125 kHz EM4100 chip, read‑only, non‑rewritable. All chips come pre‑programmed with a unique identification number (UID), but the UID cannot be changed and is pre‑printed on the cards. These are standard 125 kHz ID cards, not H‑ID cards, so they are not compatible with H‑ID readers. Blank white card, printable with Zebra, Fargo, and Evolis printers.