Compatible 4 Channels switch help to improve the compatibility.You can try to move \" A\"\"B\"\"C\"\"D\" if your Laptop can not read HDD.
The Universal 12.7mm SATA-to-SATA Caddy is compatible with laptops that has a 12.7mm thick / high optical bay with the SATA interface.
Replace your Laptop SATA CD / DVD drive with a second Hard Drive or Solid State Drive.
This 2nd Hard Disk Drive Caddy HDD Tray Enclosure Adapter helps you get maximum storage on installing a 2nd hard drive.
Please Note: This Model support all Laptops with Sata DVD ROM connection and. NOTICE: This is a 12.7mm SATA to SATA 2nd Hard Drive Caddy Adapter. So please make sure our caddy is suit for your laptop before the purchase.