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 NumberD-400L-7
Product CategoryIndustrial Rackmount Chassis
Form Factor4U
Motherboard Support12 x 13 (EATX, ATX, microATX)
Drive Bays3.5" Drives: 1 · 3.5" Drive (internal): 1 · 5.25" Drives: 7
Expansion Slots7
Cooling1x80mm, 3x120mm, removable & washable air filter
PSU SupportPS2, Mini Redundant
Front Connector2x USB 3.0
SecurityFront Bezel Key Lock
Material1.2mm SECC Zinc-Coated Steel (Japan Made), aluminum alloy front bezel
Dimensions19.00" x 7.00" x 27.90" · 482.6 mm x 177.8 mm x 708.7 mm
IndicatorsPower, HDD, Temperature, Fan (Fan/Temp require sensor board TC-ISF08 )
SwitchesPower, Reset
CertificationRoHS compliant
Ordering InformationBlack 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.