The KG1CH 9W8C4 2.5 To 3.5" Tray Caddy is a custom bundle that includes one 3.5" tray (KG1CH) and one 2.5" to 3.5" adapter (9W8C4). Designed to be compatible with 2.5" drives, this caddy allows you to easily convert and use a 2.5" drive in a standard 3.5" drive bay. Ideal for use in servers like Dell R430, R530, R630, R730, and R730XD, as well as the T430, this tray caddy provides a convenient solution for expanding storage capabilities in your system.