Cavalry 3.5″ & 2.5″ 2-Bay External Hard Drive Dock for $37.99 shipped after a $20 rebate. Here is a screenshot for your reference. This is very convenient for those who work with a lot of hard drives on a regular basis. This 2-bay SATA Drive Dock usually sells for over $50.
Originally posted earlier, this is just a friendly reminder as it is expiring soon.