![hard drive - What is the purpose of this 4-pin interface on SATA HDDs and why doesn't it exist on SSDs? - Super User hard drive - What is the purpose of this 4-pin interface on SATA HDDs and why doesn't it exist on SSDs? - Super User](https://i.stack.imgur.com/zgHrl.jpg)
hard drive - What is the purpose of this 4-pin interface on SATA HDDs and why doesn't it exist on SSDs? - Super User
![Amazon.com: Computer Jumper for Hard Drive, CD/DVD Drive, Motherboard and/or Expansion Card Jumper Blocks, 100 Piece, 2.54mm : Industrial & Scientific Amazon.com: Computer Jumper for Hard Drive, CD/DVD Drive, Motherboard and/or Expansion Card Jumper Blocks, 100 Piece, 2.54mm : Industrial & Scientific](https://m.media-amazon.com/images/I/71OnXD9+x0L._AC_SL1356_.jpg)
Amazon.com: Computer Jumper for Hard Drive, CD/DVD Drive, Motherboard and/or Expansion Card Jumper Blocks, 100 Piece, 2.54mm : Industrial & Scientific
![Standard Micro Jumpers for Hard Drives, 24 Pack: Hard Drive Jumpers: Amazon.com: Industrial & Scientific Standard Micro Jumpers for Hard Drives, 24 Pack: Hard Drive Jumpers: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51ber8w3a5L._SL1000_.jpg)