Why do we use aui (attachment unit interface) when we can directly connect rj45 to the router? - Quora
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AUI Transceiver Cable (1 Meter) - BISMON | All of Comunication Products Terminated OTDR,Test OTDR,Fusion splice,Fiber Optic cable
![10Base-T RJ45 to 10Base-5 DB15M AUI Type Media Converter | Thick Ethernet Adapter to 10BT UTP RJ-45 Transceiver 10Base-T RJ45 to 10Base-5 DB15M AUI Type Media Converter | Thick Ethernet Adapter to 10BT UTP RJ-45 Transceiver](https://m.media-amazon.com/images/I/61nDaWy3G-S.jpg)
10Base-T RJ45 to 10Base-5 DB15M AUI Type Media Converter | Thick Ethernet Adapter to 10BT UTP RJ-45 Transceiver
![NeweggBusiness - BYTECC Model DB15MF-6 6 ft. DB15 Tranceiver AUI Male to Female Cable, Beige Male to Female NeweggBusiness - BYTECC Model DB15MF-6 6 ft. DB15 Tranceiver AUI Male to Female Cable, Beige Male to Female](https://c1.neweggimages.com/NeweggImage/productimage/12-270-441-02.jpg)