“I bought these for use with a self-teaching exercise for the Pi Pico. These allow the user to solder on 0.1" Breakaway connectors allowing the strip to be self-supporting in a project breadboard.
Some soldering expertise is needed, so could be problematic for the novice.”
“Fantastic little compact form factor for Neopixels, generic arrangement can fit in most projects and can very easily be cascaded/stacked to chain many of these in series sharing a single data pin for a large amount of Incredible RGB Neopixels. Fantastic Support from Adafruit for the Arduino Library and is also unofficially compatible with the Raspberry Pi using code similar to that of the Unicorn HAT.
Definitely a great little PCB, very good price, 100% worth getting”