Amazon.com: JMT PCI-E SATA3.0 to M.2 B-Key Adapter Card HDD Converter 3 SATA 3.0 External Ports + 2 M.2 B-Key Ports Support M.2 B-Key SSD Hard Drive 2.5/3.5 inch Serial Mechanical Hard
hard drive - What is the purpose of this 4-pin interface on SATA HDDs and why doesn't it exist on SSDs? - Super User
Serial ATA (SATA) Series | TTI, Inc.
IDE to SATA SATA to IDE ATA ATAPI Serial HDD Hard Driver Disk Mutual Converter Adapter W/ Cable - Walmart.com
SATA connector - FCI - SCSI / SMT / PCB
FCI's SATA Backplane Connectors allow hot plugging and blind mating - EDN