Industrial Rackmount Chassis / D-400L-7
4U High Performance Extended-Depth Rackmount Chassis with Seven 5.25" Bays
A 27.9"-deep 4U platform with seven 5.25" bays — up to 12 × 3.5" or 36 × 2.5" drives, full-length cards, and hot-swappable 120mm center cooling.
Product Overview
What the D-400L-7 is built for.
iStarUSA 4U industrial rackmount chassis D Storm D-400L-7. Combine with BPU or T Series enable hot-swappable JBOD and RAID configuration. It also supports up to seven full-length full-height add-on cards. Total capacity up to 3.5" x12 or 2.5" x36 HDD drives for high density data storage. Center hot-swappable 120mm fan provides excellent thermal cooling solution. Achieve ultimate uninterrupted operation with support of iStarUSA redundant power supply. D-400L-7 provides your server or cluster maximum flexibility and performance.
Key Features
Engineered for reliability and integration.
- Patented lockable aluminum front bezel (TW 200281 / 190240, CN 2L01259648.5) — a proven base for custom door, silk-screen, and color programs
- Front-access 2 × USB 3.0 for on-site service and commissioning
- 120mm x3, 80mm x1 ball-bearing cooling fans for sustained airflow under load
- Removable, washable air filter for dusty industrial environments
- Power / HDD LED indicators (with optional TC-ISF08 sensor board for fan and temperature status)
- Power and alarm-reset switches for field diagnostics
Specifications
Technical specifications.
| Model Number | D-400L-7 |
|---|---|
| Product Category | Industrial Rackmount Chassis |
| Form Factor | 4U |
| Motherboard Support | 12 x 13 (EATX, ATX, microATX) |
| Drive Bays | 3.5" Drives: 1 · 3.5" Drive (internal): 1 · 5.25" Drives: 7 |
| Expansion Slots | 7 |
| Cooling | 1x80mm, 3x120mm, removable & washable air filter |
| PSU Support | PS2, Mini Redundant |
| Front Connector | 2x USB 3.0 |
| Security | Front Bezel Key Lock |
| Material | 1.2mm SECC Zinc-Coated Steel (Japan Made), aluminum alloy front bezel |
| Dimensions | 19.00" x 7.00" x 27.90" · 482.6 mm x 177.8 mm x 708.7 mm |
| Indicators | Power, HDD, Temperature, Fan (Fan/Temp require sensor board TC-ISF08 ) |
| Switches | Power, Reset |
| Certification | RoHS compliant |
| Ordering Information | Black Bezel:D-400L-7 · Blue Bezel:D-400L-7-BLUE · Red Bezel:D-400L-7-RED · Silver Bezel:D-400L-7-SILVER |
Downloads
Documentation & drawings.
Applications
Where the D-400L-7 is deployed.
Storage Server
Up to 12 × 3.5" or 36 × 2.5" drives with cage modules.
Data Center
Redundant-PSU 4U nodes for uninterrupted operation.
Edge AI
Seven full-length full-height slots for accelerator cards.
Industrial PC
Hot-swappable 120mm center fan wall for heavy loads.
Machine Vision
Full-length card clearance for capture hardware.
OEM/ODM Hardware Platform
JBOD, RAID, and branding customization base.
Customization Options
Adapt the D-400L-7 to your program.
iStarUSA Design-In services cover mechanical, electrical, and lifecycle customization scopes.
Front Panel Customization
Mechanical Modification
Storage Configuration
Power Supply Options
Cooling Design
Branding / Labeling
Long Lifecycle Planning
Two Ways to Buy
Order the standard model — or use it as a platform.
The D-400L-7 is available both as a ready-to-ship standard product and as a starting point for OEM/ODM customization. Pick the path that matches your project.
Option A
Use as Standard Product
Order the D-400L-7 with its published specifications. Ideal when you need a proven configuration, immediate quotation, and comparable datasheets against other models.
- Published specifications and datasheets
- Standard configuration, ready to quote
- Compatible with existing integrations
Option B
Use as Customizable Platform
Start with the D-400L-7 and adapt it for OEM/ODM, Design-In, mechanical modification, or long-term supply programs. Our engineering team supports the full customization scope.
- OEM/ODM branding and mechanical modification
- Design-In engineering support
- Long-lifecycle and BOM stability planning
Related Products
Explore adjacent options.
Design-In Center
Take D-400L-7 into your next project.
Request a quotation on the standard SKU, or start a Design-In conversation around customization, lifecycle, and integration.





