It makes use of a type-c interface, which is rechargeable and the pins would be replaced. After many hardware updates and parameter modifications, the current expertise is really easy to use. As lengthy because the indicator gentle flashes, it must be good. Since there are many varieties of peripheral circuits of optocouplers, if it is usually on or off, get rid of the sunshine If you confirm the coupling again, you may 100% opt whether it's nice or bad. Before testing, the motherboard should be powered off and then discharged. Testing cannot be carried out while the flexibility is on. The pin marked on the components corresponds to pin 1 of the optocoupler, and press it from peak to bottom. If the optocoupler pins are rusty or have glue, you might clean them a little bit in advance. Different batches may have different appearance, which would not influence use. Colour:Green Material:PCB+electronic features Package Contents: 1 x Optocoupler Tester Only the above equipment content, diverse products are not included. Note: Light mirrored image and diverse exhibits can cause the color of the object in the photo barely assorted from the genuine thing. The length allowed error is +/- 1-3cm.