These slimline loopback testers can help diagnose problems with serial or parallel interfaces. Two options to plug into your PC port - DB25 male and DB9 female.
Collections: 1 Bing Products, Adapter, AFB-Lcom, All, Cables & Connectors, Connectors & Adapters, D Subminiature, DB9, Google Shopping, L-Com Connectivity Products | Lcom Global Connectivity, L-com Non-Cable Products, Under £10
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