The fact that the 3.5” hard drive does not need to be secured in a carrier means that no screwdriver is required, allowing for installation and removal to be twice as fast. It requires the space of a 5.25” bay. It supports SATA hard drives with speeds of SATA I, II, and III. The housing of the exchange frame is almost entirely made of aluminum, with only the front and rear panels made of hard plastic. Aluminum is very stable and lightweight, particularly known for its excellent thermal conductivity. To protect the hard drive from unauthorized access, the hard drive slot can be locked. An LED indicates operation and access, but there is no alarm for hard drive failures or similar issues. Those who appreciate quiet operation will find this beneficial. The exchange frame supports all 3.5”/2.5” SATA/SAS 1.5/3.0/6.0 Gbit/s hard drives (1” high) and is installed in a standard 5.25” slot. The specialized aluminum housing provides better cooling and supports hot swapping. The lock protects against unauthorized access. The fanless design allows for silent operation. A 12V power connection is available for an additional fan if needed.