I'm writing this just to let you know that this fits in my new OptiPlex 3020 Minitower BTX Base. I searched before purchasing and was unable to confirm that this would fit in my computer. It is not 100% identical to the existing caddy and fits tightly; however it does latch and will slide in and out with a little extra force. I'm not planning to pull my drive unless it needs to be replace so I don't view this as a problem. The important point is that it does fit. I would give it 5 stars if it slide in and out as easily as the existing drive caddy.