HP 5062-3351 - Transceiver retainer (metal bracket) - Screws to the AUI connector port standoffs Retail
HP 28685-93101 - EtherTwist (10Base-T) transceiver - Connects to the AUI port connector - (28685A/B) - Plugs into AUI port Retail
HP 28641-60015 - HP ThinLAN (10Base-2) transceiver - Has AUI and BNC connectors - (28641B) - Plugs into the AUI port Retail