Need to check this out in the summer: see if there is PCIe SSDs available for my Late 2013 Retina MacBook Pro.
Newer-generation 13″ and 15″ Retina MacBook Pros use newer SSDs with faster PCIe connectors. As of early 2015, no third-party SSDs are compatible with this standard, but we’re expecting to see options hit the market closer to the middle of the year. Some Retina MacBook Pro SSDs will apparently be capable of achieving speeds in the 1.2GB/second range, compared with the 700-800MB/second speeds of stock drives.
–jeroen
via: How-To: Upgrade the SSD in your MacBook Air or Retina MacBook Pro, boosting size & speed | 9to5Mac.
The Wiert Corner - irregular stream of stuff 