1B5146200-600 3.5" HDD Caddy – For Dell Optiplex 3040, 5040 SFF & Precision 3420 DT

This is a hard drive caddy for Dell small form factor desktops.

Fits the Optiplex 3040, 5040, and 7040 SFF, as well as the Precision 3420 DT.

Part number 1B5146200-600.

It's for a 3.5-inch hard drive.

Made in the USA, unbranded, but it's a direct replacement.

If you're adding a drive or replacing a missing bracket, this is the one you need.