GoPro Hero4 SD Card Slots
GoPro Hero4 Silver Expansion Port
Replace a dirty, corroded, or malfunctioning expansion port or microSD slot. This part is compatible with a Silver Edition GoPro Hero4.
GoPro Hero4 Black Expansion Port
Daughter board assembly with the GoPro port and the microSD card slot
GoPro announced the Hero4 in 2014 in two editions: black and silver.
Both versions of the Hero4 include WiFi and bluetooth functionality.