In the video below you’ll find instructions on how to install a second drive in Acer Aspire 4741G with HDD Caddy.
1. Turn of your laptop and put it upside down.
2. Remove battery for safety measures.
3. Remove screw holding the optical drive.
4. Use paperclip to pull out the bezel.
5. Remove the bezel with a small flat screw driver.
6. Put the bezel on the HDD Caddy.
7. Put the metal bracket on the HDD Caddy.
8. Insert the completed HDD Caddy in your laptop and you are done!