. Are you looking for the 2.5 Hard Disk Drive (HDD) or Solid State Drive (SSD) upgrade for your existing 3.5 drive bay setup? Do you simply need a very low cost 2.5 adapter cradle for your system?. The SSD-RAIL is a very low cost & easy to install mounting assembly produced in ABS plastic to allow easy fitment of any 2.5 HDD or SSD drive into your existing 3.5 drive bay found on server workstation & desktop computers. The adapter cradle can also be used for other media types including 2.5 tape backup & media card readers also.. Dynamode understands that you might already have data & power cables for your SATA or other interface mass storage device so they do not bundle unnecessary hardware that you will not use. It is ideal for system builders & enthusiasts looking to get the most from there existing setup Key Product Info. Lightweight ABS plastic 2.5 HDD/SSD cradle Ideal for 2.5 HDD or SSD fitment into 3.5 drive bays Multi-slot design for a secure & tailored fit into any system Add enhanced storage potential & reduce costs Ideal for all systems desktops workstations & servers