GBIC-ZX-80 1000BASE-ZX GBIC transceiver module. Third Party - 100% Compatible. In stock and ships within 24 hours. All of our GBIC-ZX-80 transceivers are tested in-house prior to shipping to insure your GBIC-ZX-80 transceiver will arrive in perfect physical and working condition. This GBIC-ZX-80 transceiver comes with a one year advance replacement warranty. Contact us with any questions. We have Zyxel specialists ready to help.