the 3.5 hdd cage is always included because it is a part of odd/hdd module.  the odd depends on the hdd cage for mechanical support in sff.  this concept has been used by Dell engineer since 9020 sff. the caddy or bracket is a separate metal piece part discussed in this thread [URL] If your pc product spec says "575-BBKX : No Hard Drive Bracket, Dell OptiPlex" then you may not have the removable metal 3.5 caddy. if you really do not have it you can buy it on eBay.  [URL] this tear down guide shows you the hdd/odd module [IMAGE] [URL] [IMAGE] even though the service did not mention 3.5 hdd, it is supported in sff per spec. Primary Hard Drive1,5 3.5-inch, 500 GB, 7200 RPM, SATA HDD (Tower and Small Form Factor only)3.5-inch, 1 TB, 7200 RPM, SATA HDD (Tower and Small Form Factor only)3.5-inch, 2 TB, 7200 RPM, SATA HDD (Tower and Small Form Factor only)3.5-inch, 4 TB, 5400 RPM, SATA HDD (Tower and Small Form Factor only) Dell service manual server is down now but you can review it here [URL]
Ordering above with SSD drive. No HDD. Will it come with caddy so I can add a 3.5" Surveillance camera drive? Thank You Lou
Optiplex 3080 small form factor 3.5 drive caddy