Token ring ( IBM MAU style ) to PC 9D adaptor 5 metres.
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IBM 6091078 COMPONENT HOUSING W/ MAU 8-PORT TOKEN RING ( MAU 8228 IBM 8828 ) | eBay
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Vintage IBM Token Ring network hardware | eBay
9348 U/M TOKEN RING DATA CONNECTOR MAU / RJ45 | eBay
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Andrew MAU 8228 Plus Token Ring | RecycledGoods.com
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Token ring - PC DB9 (IBM MAU style) network patch / drop cable / lead, 2.5 metre | eBay
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Token Ring - Wikipedia
Meet U-MIC: The UTP medium interface connector for MAU Token Ring - Polaridad.es
Token Ring - Wikipedia
Token Ring - Wikipedia
THOMAS CONRAD CORP TOKEN RING MAU TC4050-11 16 PORT 1989 MADE IN USA | eBay
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![Troubleshooting Token Ring [Support] - Cisco Systems](https://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1906_files/tr190602.jpg "Troubleshooting Token Ring [Support] - Cisco Systems")