The differences between internal and external cables are mainly reflected in connection mode, ‌ application scenario, ‌ reliability, ‌ electrical performance, ‌ volume and integration. ‌

Connection method: ‌ internal connection is to connect the internal connection points of the two circuit components directly, ‌ and the external connection is to connect the external pins of the two circuit components. ‌

Application scenario: ‌ internal cable is suitable for scenarios where ‌ is relatively close and requirements for electrical performance are low, and ‌ external cable is suitable for scenarios where requirements for electrical performance are relatively close and ‌ is relatively long. ‌

Reliability: ‌ external cable due to the characteristics of its connection mode, ‌ is usually more reliable than the internal cable, ‌ easier to check and maintain. ‌

Electrical performance: ‌ external wiring can improve the electrical performance of the circuit to a certain extent, ‌ reduce electromagnetic interference, ‌ and the internal wiring has little effect on the electrical performance of the circuit. ‌

Volume and integration: ‌ internal wiring can reduce the volume of the circuit, ‌ improve the integration of the circuit, ‌ and the external wiring is relatively poor in this respect. ‌