Hot Swap Drive Cage for Rosewill 4U Case

Use this to turn your Rosewill 4U rackmount case into one with hot-swap SAS drive bays! The existing bays are nice with the tool-less drive trays, but are difficult to swap drives if you are upgrading or have problems. This design reuses the same modular rail system as the original cages, and even works along with them if you only want to replace one.

A modular ATX power supply is recommended for ease of installation of the 4-pin power connectors.

BOM

• ~400g of filament - PETG or ASA recommended
• 8x m3x5.7 heat-set inserts (Amazon)
• 4x m3x6 machine screw
• 4x m3x12 machine screw
• 1x SAS backplane (Ali Express US)
• Up to 4x Dell 3.5" Gen 13 HDD trays (Ebay search, look for compatibility with R730, R630, R430)
• 120mm PC fan with self-tapping screws
  • Depending on drives use a higher static pressure fan
• 4x original Rosewill component guides

Assembly

1. Print the parts
2. Install the heat set inserts into the 8 locations in the rear of the drive_caddy part
3. Attach the backplane using 4 m3x6 screws to the center 4 holes
4. Attach the 120mm fan to the fan_shroud using the self-tapping screws
5. Attach the SAS cable and 4-pin ATX power connectors
6. Attach the fan shroud to the caddy with 4 m3x12 screws routing the cables through the slot in the side of the shroud
   1. Note that the shroud is asymmetrical to match the backplane
7. Insert the component guides into the top and bottom of the cage
8. Install the cage into the case
9. Attach SAS cable, ATX power, and fan cable to system
10. Mount drives to drive trays
11. Insert drives