10" Rack Hot-Swap 3.5" HDD 6 / 8 / 10 Bay with fan

Upd. 2026-june-13: Added customizable length version of back support for 6-bay and 10-bay versions.

Upd. 2026-june-06: Added new 120mm fan mounting plate (7h), added 10 HDD / 4U / 140mm fan and 6 HDD / 2.5U / 2x 92mm fan versions.

Upd. 2026-may-03: Added new fan mounting plate (7g) with 124–126 mm bolt hole spacing and adjusted location of cable window for compatibility with various fan manufacturers.

Modifications from original:

• more drives - 6 HDD / 2U to 8 HDD / 3U
• proper clearance for airflow (30.5mm)
• rear support 
• 140mm fan for cooling

Rear support is 44.5mm and designed to match standard LabRax depth (~240mm). You can adjust support length to your needs by using part on 7f plate which already split onto 3 pieces and you only need to move top part to desired location and scale middle part. Or DM me.

BOM (8 HDD version):

• 8x Dell PowerEdge 3.5" HDD tray
• 8x SATA-SATA or SATA-SAS adapters
• 1x 140mm computer fan
• 16x M3x12 screw (you should use HEX ones to avoid difficulties with mounting SATA adapters)
• 6x M4x25 screw (body and rear support attachment) 
• 4~8x M4x12~20 (fan panel mount)
• 4x M4x30~35 screw (depending on fan thickness) 
• 16~24x M6x12 screws (for rack mount)

STEP files are available.

By downloading, printing, or using this HDD rack model, you agree that you do so entirely at your own risk.
This design is provided "as is" without any warranties, express or implied, including but not limited to fitness for a particular purpose, durability, or safety.