Rosewill 4U Server Chassis 11 Bay Server Case 8X 3.5 + 3X 5.25 HDD, ATX, Rackmount Server Case, Include Front 2X 120mm Fans Rear 2X 80mm Fans Metal Rack Mount Computer Case 21" Deep, RSV-R4000U
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AI Verdict
A 4U rackmount chassis with 8x 3.5" HDD bays, 3x 5.25" bays, and 7 PCI slots, designed for ATX/CEB motherboards in a 21" deep metal frame.
This chassis offers a lot of internal storage capacity with 8x 3.5" bays and flexibility with 3x 5.25" bays, making it suitable for storage-heavy home servers or budget-friendly rackmount builds. However, the lack of true hot-swap bays and potential CPU cooler limitations mean it's not a universal solution for all server needs.
If true hot-swap drive access is critical, look for chassis explicitly stating 'hot-swap bays' and specifying the backplane type.
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Pros
- Accommodates 8 internal 3.5" HDDs and 3x 5.25" devices for storage expansion.
- Supports standard ATX and larger CEB motherboards.
- Features 7 PCI expansion slots for add-in cards like RAID controllers or network cards.
- Includes 2 front 120mm and 2 rear 80mm pre-installed fans for chassis airflow.
- Front panel offers 2 USB 3.0 ports and LED indicators for power, HDD, and LAN status.
- A built-in front panel lock provides physical security for the drives and components.
Cons
- The 3.5" drive bays are not true hot-swap, requiring individual internal cabling for each drive.
- Potential for CPU air cooler clearance issues with larger coolers, especially for high-TDP processors.
- At 21 inches deep, it might be too long for shallower rack cabinets.
- Only two USB 3.0 ports on the front panel, with no USB-C option.
Dimension Scores
It provides ample storage bays (8x 3.5", 3x 5.25") and 7 PCI slots for expansion, which is solid for its class.
The four pre-installed fans (2x 120mm, 2x 80mm) are described as providing 'reduced noise', suggesting an average noise profile for a multi-fan server chassis.
Constructed from metal, which is standard for server chassis, and users generally don't report major structural issues.
While not explicitly detailed, the internal layout for 8 HDDs and 3 ODDs, combined with a lack of specific cable management features mentioned, suggests it's likely basic and requires user effort.
Best For
- Home lab builders needing many 3.5" drive bays for storage.
- Users building a server with ATX or CEB motherboards.
- Rackmount setups where a 21" deep chassis fits without obstruction.
- Budget-conscious server builds utilizing existing 5.25" bay accessories like optical drives or aftermarket hot-swap cages.
Not Recommended For
- Environments requiring true hot-swappable drive bays for quick maintenance or upgrades.
- Compact rack installations with limited depth, as its 21" depth is substantial.
- Systems needing extensive front panel connectivity beyond two USB 3.0 ports.
Watch Out For
- The 3.5" drive bays are not hot-swappable, meaning you'll need to open the case and connect power and data cables to each drive individually.
- Large air CPU coolers, particularly for high-end processors like Threadripper, might have clearance problems inside the chassis.
- The 21" depth can exceed the usable space in some shallower rack cabinets, so measure your rack before buying.
Full Specifications
| ASIN | B09HLCNKM3 |
| Brand | Rosewill |
| Color | 21.1" Depth |
| Series | RSV-R4000U |
| Fan Size | 80 Millimeters |
| Material | Metal |
| Case Type | Full Tower |
| Model Name | RSV-R4000U |
| Item Weight | 33.4 pounds |
| Manufacturer | Rosewill |
| Cooling Method | Air |
| Item model number | RSV-R4000U |
| Product Dimensions | 21 x 16.8 x 7 inches |
| Item Dimensions LxWxH | 21 x 16.8 x 7 inches |
| Number of USB 2.0 Ports | 1 |
| Number of USB 3.0 Ports | 1 |
| Motherboard Compatability | ATX |
| Power Supply Mounting Type | Rear Mount |
| Recommended Uses For Product | Business |
What Buyers Say
Users often pick this chassis for its capacity to hold many 3.5" drives and its compatibility with ATX/CEB motherboards, especially for home server or NAS builds. The inclusion of 5.25" bays is a plus for those wanting to add optical drives or hot-swap cages. However, the drive bays are not truly hot-swappable, meaning each drive needs individual cabling, and some users find the depth challenging for shallower racks.
“Needed a cheap case for my Plex server with tons of drives, and this fits 8 of my 3.5s, but man, wiring up all those drives was a pain, wish they were actually hot-swap.”
Common Praise
- Accommodates 8 internal 3.5" HDDs for significant storage capacity.
- Includes 3x 5.25" bays for additional devices or aftermarket hot-swap cages.
- Supports standard ATX and larger CEB motherboards.
- Comes with 4 pre-installed fans (2x 120mm, 2x 80mm) for out-of-the-box cooling.
- Front panel has 2 USB 3.0 ports and LED indicators for system status.
Common Complaints
- The 3.5" drive bays are not hot-swappable, requiring manual cabling for each drive.
- Potential for CPU air cooler interference with larger coolers.
- The 21" depth can be an issue for some rack setups, requiring careful measurement.
- No USB-C port on the front panel for modern connectivity.
Ownership Tips
- The included fans might be audible in a quiet environment; consider replacing them for lower noise levels if that's a concern.
- Plan your internal cable routing carefully, especially with 8 HDDs, as there are no dedicated cable management features.
- Measure your rack depth precisely; the 21" depth is substantial and might require specific rack types.
- The 5.25" bays are useful for adding aftermarket hot-swap cages or other accessories, expanding functionality beyond the stock 3.5" bays.
Frequently Asked Questions
Does this case support hot-swappable hard drives?
No, the 3.5" drive bays are not true hot-swap; you'll need to connect each drive internally.
What motherboard sizes can I use with this chassis?
It's compatible with ATX and CEB motherboards.
How many fans are included and what are their sizes?
It comes with four pre-installed fans: two 120mm in the front and two 80mm in the rear.
Are there USB-C ports on the front panel?
No, the front panel includes two USB 3.0 ports, but no USB-C.
What is the depth of this server case?
The chassis is 21 inches deep.
Buying Guide
When picking a server chassis, you're mostly thinking about how many drives you need, what size motherboard you're using, and if it'll actually fit in your rack. This isn't like a desktop case where aesthetics matter; it's about function and density. Pay attention to the depth, because a 21-inch case won't fit in a 19-inch deep cabinet, obviously.
Drive Bays (8x 3.5" HDD, 3x 5.25")
This tells you how many hard drives and other devices (like optical drives or hot-swap cages) you can cram in there. More bays mean more storage potential for your server.
Motherboard Compatibility (ATX, CEB)
This dictates what size motherboard you can install. ATX is standard, CEB is a bit larger, so this case gives you options for common server and workstation motherboard sizes.
Depth (21" Deep)
This is crucial for rack compatibility. Measure your rack from front to back rails to make sure this case won't stick out or prevent the door from closing. A 21-inch depth is on the longer side for some home racks.
Alternatives
If you need true hot-swappable drives, look for chassis that specify 'hot-swap backplane' and the number of bays. If you have a shallower rack, search for 'short-depth rackmount chassis' with a depth under 20 inches.
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