Added some more links. For those that need cables, check this post:
Cables
Below are some cable options in various configurations.
Internal
SFF-8643 → SFF-8643 - link
SFF-8643 → SFF-8087 - link
SFF-8643 → SATA breakout - link
SFF-8643 → SATA/SAS breakout (SFF-8482 w/ SATA power) - link
SFF-8643 → SATA/SAS breakout (SFF-8482 w/ Molex power) - link
SFF-8643 → SFF-8644 - link