Contents:

Pretec SD 4GB 60× card teardown

Pretec SD 4GB 60× card teardown

Pretec SD 4GB 60× card card openedThe card still works well, but due to weak mechanical design the card disbanded into parts after few years of use. That is why I decided to look inside.

The card PCB can use two flash chips, but only one is used. A foam spacer is inserted in place of the second one. The controller uses a proprietary Incomm IN369AB chip. It probably uses dual layer PCB. PCB thickness: 0.18mm (with mask in place without copper); bottom cover plastic thickness: 0.60mm near the connector, 0.50mm elsewhere; top cover plastic thickness: 0.40mm.

back side of the PCB front side of the PCB