SKU: 49198286298

iStarUSA D-400S3 Rackmount Enclosure

Sale price$129.01 Regular price$143.34
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Description

iStarUSA D-400S3 Rackmount EnclosureThe iStarUSA D 400S3 Rackmount Enclosure is an ultra compact, industrial grade 19 inch chassis designed to deliver exceptional expandability without sacrificing footprint. With a thoughtful balance of depth, airflow, and accessibility, this enclosure is tailor made for space constrained data centers, labs, edge deployments, and rugged industrial environments. Its compact 13. 7" depth enables tight rack installations while still providing robust

The iStarUSA D-400S3 Rackmount Enclosure is an ultra-compact, industrial-grade 19-inch chassis designed to deliver exceptional expandability without sacrificing footprint. With a thoughtful balance of depth, airflow, and accessibility, this enclosure is tailor-made for space-constrained data centers, labs, edge deployments, and rugged industrial environments. Its compact 13.7" depth enables tight rack installations while still providing robust support for mainstream components, making it an ideal foundation for compact workstations, compact servers, or modular compute nodes that demand reliable performance in a durable, space-saving chassis. Built to accommodate a wide range of hardware, the D-400S3 emphasizes versatility—giving administrators and integrators a single, scalable enclosure that can grow with evolving workloads and storage needs.

  • Compact 13.7" depth: Designed to fit comfortably in standard 19" racks, the D-400S3 maximizes usable rack space, reduces cable clutter, and simplifies cooling management in crowded environments.
  • Full-size ATX motherboard compatibility: The full-size I/O area supports all ATX motherboards, enabling broad platform choice and compatibility with mainstream CPUs, GPUs, NICs, and other essential components.
  • Expansion capacity up to seven full-height add-on cards: This chassis is built for dense expansion, allowing GPUs, RAID controllers, network adapters, and other PCI/PCIe cards to be installed in a compact footprint to handle demanding workloads.
  • Dual external 3.5" drive bays with support for up to 4 x 2.5" drives via BPU-2535: Perfect for flexible storage configurations, hot-swap options, and high-throughput data access in a compact server or workstation.
  • One slim 5.25" bay for optical or other slim devices: Provides additional versatility for media, diagnostic tools, or legacy peripherals without compromising overall rack efficiency.

Technical Details of iStarUSA D-400S3 Rackmount Enclosure

  • Depth: 13.7 inches (compact chassis designed for space-constrained racks)
  • Motherboard compatibility: Full-size ATX motherboard I/O, enabling broad compatibility with current-generation CPUs and PCIe devices
  • Expansion slots: Up to seven full-height add-on cards, offering expansive I/O, GPU, or controller options in a single 19" enclosure
  • Drive bays: Two external 3.5" drive bays; supports BPU-2535 for up to four 2.5" drives (adds flexible, high-density storage capacity)
  • Bay configuration: One 5.25" slim bay for optical or other slim devices
  • Chassis design: Industrial-grade rackmount enclosure built to endure demanding environments while delivering reliable performance

How to Install iStarUSA D-400S3 Rackmount Enclosure

  • Prepare the rack: Verify that the rack rails are compatible with a 19" rackmount chassis and install the rails according to your rack manufacturer’s guidelines. Ensure the mounting surface is clean and free of obstructions to promote proper airflow.
  • Mount the enclosure: Slide the D-400S3 into the rack, align mounting holes with the rails, and secure the chassis using screws or hardware provided by the rack kit. Confirm that the enclosure sits level and that there is sufficient clearance for rear cable management.
  • Install the ATX motherboard: Open the chassis access panel and mount your full-size ATX motherboard to the internal tray, aligning the I/O shield with the rear cutouts. Secure the motherboard with standoff screws and connect essential power and data cables, including the 24-pin ATX power connector and CPU power leads.
  • Configure expansion cards: Determine your workload and install up to seven full-height expansion cards into PCIe/PCI slots. Maintain proper spacing between cards to promote adequate airflow and reduce thermal throttling. Re-seat cards if any slot is initially difficult to engage.
  • Set up storage: Install drives into the two external 3.5" drive bays, or use iStarUSA BPU-2535 adapters to support up to four 2.5" drives, depending on your storage strategy. Route cables cleanly to the rear and secure drive trays to minimize vibration and movement during operation.
  • Install the slim bay device: If you plan to use a 5.25" slim device (optical drive or similar), insert it into the slim bay and connect its data and power cables. Ensure the cables are neatly managed to avoid obstructing fans or airflow pathways.
  • Power up and test: Connect the power supply, perform a POST check, and verify that all installed components are recognized by the system. Confirm that fans operate correctly and monitor thermals during a brief burn-in to ensure stable operation.
  • Cable management and airflow: Organize front-to-rear cables to improve airflow and reduce dust collection. Use any available cable routing channels or ties to maintain a clean interior, which helps maintain component longevity and consistent performance.

Frequently asked questions

  • Q: What motherboard size does the D-400S3 support? A: The enclosure supports full-size ATX motherboards via its standard I/O area, providing broad compatibility with many mainstream platforms.
  • Q: How many expansion cards can I install? A: You can install up to seven full-height add-on cards, enabling substantial expansion for GPUs, NICs, storage controllers, and other PCI/PCIe devices within a compact 19" rack enclosure.
  • Q: What are the drive configurations? A: The enclosure includes two external 3.5" drive bays. It also accommodates up to four 2.5" drives when using iStarUSA BPU-2535 adapters, offering flexible storage expansion without compromising rack space.
  • Q: Is there a bay for optical drives? A: Yes, there is one slim 5.25" bay suitable for optical drives or other slim devices to support data transfer and maintenance tasks in a compact form factor.
  • Q: What is the depth of the enclosure? A: The D-400S3 features a shallow 13.7" depth, purpose-built to maximize rack density and ease integration in space-limited environments.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 49198286298

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4.1 ★★★★★
Based on 16 reviews
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HA
Pawtucket, US
★★★★★ 5
Worth it!
Size: Queen(Pack of 2)
These pillows are amazing and very soft and comfortable. They came nicely packaged and I let them sit out for just a few hours before using them and that was plenty of time! They come with the cooling cover and fit a standard queen sized pillowcase. The material expands well and does not have any weird smells. 10/10 well worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
B
Verified Purchase
Bridgette Rose
Charlottesville, US
★★★★★ 5
Miracle pillow
Size: Standard(Pack of 2)
Best pillow I’ve ever had. I have been using this since December 2024 and it still hasn’t gotten flat. It is amazingly comfortable and solves all my neck issues for a side sleeper. My head never gets hot either. I’ve recommended this to my friends and they’ve had success with it as well.
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Reviewed in the United States on May 28, 2026
K
Verified Purchase
Kindle Customer
Louisville, US
★★★★★ 4
Really wanted to love these
Size: Queen(Pack of 2)
I really wanted to love these but they gave me a stiff neck. I haven't slept with a pillow since buying these. They are firm except where you lay your head. It just deflates there. I expected it to sink in to match the curve of my neck but it was more than I could handle. My head ended up in a valley between the two ends of the pillow. The price was good, zipper worked fine, it looks as advertised and the pillows are good quality. The cooling part works, its just not what I needed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
J
Verified Purchase
Jack Raines
Grantham, US
★★★★★ 5
best pillow I have ever bought.
Size: Queen(Pack of 2)
most comfortable pillow I have ever bought. It seems very well put together so I believe that it will last a long time. Very happy with the purchase. I do think the weight of the pillow will surprise many people because while it is quite heavy, it is very firm and extremely comfortable. Great value.
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Reviewed in the United States on May 27, 2026
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Verified Purchase
RC
Cuba, US
★★★★★ 5
I paid for the product and it’s GOOD 👍🏽
Size: Queen(Pack of 2), Size: Queen(Pack of 2)
Honest review to help your decision. These are a bargain at two for one. I paid almost $30 for one at a local retailer and it’s already flattened after 7 months. This product arrives vacuum sealed with the cooling pillow covers separately (separate so you can wash before using). They are loaded with memory foam which I found pleasing. I chose to leave all of the foam in because I’m sure it’ll flatten sometime in the future. I’ve been using these for TWO MONTHS now and they have not flattened. Easy to mold and fluff, soft and they are added support for my back up pillows. I cannot attest to any type of pain relief because I have not experienced that with these personally. I do feel my sleep is better so my tension headaches have lessened. The cooling hex layer is on the cover NOT the actual pillows. I’m sure everyone knows that memory foam gets really hot 🥵 but the cooling covers on these help minimize that. It actually feels cool to the touch like a gel product. I find the quality to be exceptional. All in all, give it a shot.
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Reviewed in the United States on September 16, 2025

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