IcyDock SSD & SATA HDD Converter 2.5" to 3.5"

 From the manufacturer:

• Converts your 2.5” SATA I/II HDD or SSD to a 3.5” SATA hard drive, for 3.5” SATA drive bay usage.
• Screw-less and Tool-less.
• Simple and Lightweight design
• Added Airflow Vents.
• Compatible with most 3.5” HDD enclosures.
• Compatible with Mac Pro.
• Viewing Window over SATA Connection.
• Perfect for Power Users, Gamers, and Average Users.