Pros: screwless just insert the drives good price

Cons: The metal spring clips on the backplane literally bend the backplane seperating the sata connectors from the hard drive it did not read any of my drives. so it was DOA

Overall Review: The new style is a failure they inserted metal spring clips in the back that are so strong that they literally bend the backplane and the sata contacts on the back plane away from the hard drive. I thought I could just remove them and it would operate like the several old style one I owned in the past but DON'T DO IT. you cannot get the drive out with out a hooking it out from the front I have purchased several of these in the past that where in the old style that worked great these new ones have fundamental design flaws

Pros: good asthetics

Cons: high defect rate top bay does not work on all on the first 1 2nd the speed of the drive was very slow