Due to several inquiries regarding sources for the purchase of components, here are some general information and links, which, however, do not claim to be correct or complete. Please check yourself whether suitable for the purpose. (at AliExpress for a fast 10-14 days delivery use "AliExpress Standart Shipping" if possible, if you don't want to wait 1-2 months for the delivery)

AliExpress | 5V Step-Down Voltage Regulator | > Link

AliExpress | 9V Step-Up Voltage Regulator | > Link

AliExpress | 12V Step-Up Voltage Regulator | > Link

AliExpress | HDMI Jack (TYPE-1) | > Link

AliExpress | 4.3" IPS LCD Display | > Link

AliExpress | 1x40 Pin Header | > Link

AliExpress | 72 Pin / 44 Pin / 24 Pin Edge Connector | > Link

AliExpress | 44 Pin 90° Edge Connector | > Link

AliExpress | DB9 Joystick Jack | > Link

AliExpress | EEPROM AT28C256 | > Link

AliExpress | Cinch Jack | > Link

AliExpress | Serial Jack | > Link

AliExpress | Video Jack (8P DS-8-102 262B Deg) | > Link

AliExpress | B103 10K Resitor Wheel | > Link

AliExpress | Audio Jack | > Link

AliExpress | S-Video Jack | > Link

AliExpress | USB Host mini | > Link

AliExpress | ATX Power Connector | > Link