Description: This is a great server bracket tray for IBM server Accepts 2.5 inch SFF SAS / SATA / SSD HHD Compatible Part Numbers: 44T2216 Works With: xSeries 3550 M2 xSeries 3650 M2 xSeries 3500 M2 xSeries 3400 M2 Note: List is by no means complete. Please check picture of tray to see if it is what you need. Package Included: 1 x caddy tray Keywords: Hot swap tray, IBM, 2.5 inch