Made of aluminum instead of composite or plastic. Conducts eventual heat much better.
Comes with everything you need to install DVD drive and use it (tiny screws, rubber feet, USB cable with Y splitter for power hungry DVD drives)
Weaknesses:
At $25 priced higher then competition, but excellent price matching policy can take care of that.
Summary:
Unlike previous poster I was able to install Lenovo Thinkpad T and W series DVD drives into this enclosure without too much trouble. Stock Thinkpad DVD drive has small black plastic tab on its left side (looking from the front of the drive). That tab is used to latch/unlatch DVD into Thinkpad Ultrabay. It also prevents drive sliding all the way into enclosure by about 3/4". You need small Phillips screwdriver to remove that tab, and once done Thinkpad DVD drive fits perfectly into enclosure.
- unfortunately, didn't fit my thinkpad ultrabay dvd drive. The interal SATA and power connector looks like the right type, but may be misaligned by just a tiny bit.
Summary:
Can't really give a valid rating as it didn't fit my drive. Too bad.