Rosewill 4U Server Chassis Rackmount Case | 7 3.5" Bays, 2 5.25" Devices| ATX, CEB Compatible | 1 120mm PWM Fan, 2 80mm PWM Fans | 2X USB 3.0 | Front Panel Lock and Key | Silver/Black - RSV-R4100U
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AI Verdict
This 4U rackmount chassis offers 7 internal 3.5" bays, 2x USB 3.0, and 3 pre-installed PWM fans for ATX/CEB builds.
This 4U rackmount case is a situational fit for those building a storage-heavy server with ATX or CEB motherboards, especially if budget is a primary concern. The 7 internal 3.5" bays and 7 PCI slots provide expansion, but the specific HDD mounting requirement and basic cooling system mean it won't suit every build.
If you need more advanced cooling or hot-swap drive capabilities, look for cases with dedicated hot-swap bays and support for larger fan configurations or liquid cooling radiators.
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Pros
- Accommodates 7 internal 3.5” HDDs and 2 external 5.25” devices, providing ample storage expansion.
- Includes 7 PCI expansion slots, supporting ATX and CEB motherboards for system growth.
- Features 3 pre-installed PWM fans (1x 120mm front, 2x 80mm rear) for air cooling.
- Front panel includes 2x USB 3.0 ports and a lock with key for security.
- Users report a sturdy build quality with no sharp edges.
Cons
- Only supports 3.5" HDDs with three screw holes on each side, not those with two screw holes.
- Some users have noted that the build quality might not meet all expectations.
- The included fans, while acceptable, may not be quiet enough for noise-sensitive environments.
- Cable management options are limited, requiring creative routing for a tidy build.
Dimension Scores
The case provides 7 internal 3.5" HDD bays and 7 PCI expansion slots, offering a solid foundation for a storage or expansion-focused server.
The 3 pre-installed PWM fans are considered acceptable in terms of noise, placing them around average for server chassis in this price band.
Users report a sturdy build with no sharp edges, though some feedback indicates it might not meet higher expectations for premium materials, with the case being made of 1.0 mm SPCC steel.
The internal design provides limited dedicated features for cable routing, requiring users to be creative to maintain airflow and organization.
Best For
- Home lab builders needing significant 3.5" HDD storage in a rackmount form factor.
- Small server deployments requiring ATX or CEB motherboard compatibility.
- Users prioritizing physical security with a front panel lock for their server components.
Not Recommended For
- Anyone needing hot-swap drive bays for frequent drive changes.
- Builds requiring extensive liquid cooling setups or very large CPU air coolers.
- Users who need to install 3.5" HDDs that only have two screw holes per side.
Watch Out For
- The chassis only supports 3.5" HDDs that have three screw holes on each side, meaning drives with only two screw holes per side will not mount securely.
- While the included fans are considered acceptable, some users might find them louder than desired for a quiet home environment.
- The internal layout can make cable management challenging, potentially impacting airflow if not carefully routed.
Full Specifications
| ASIN | B09BDH3SYQ |
| Brand | Rosewill |
| Color | Silver |
| Series | RSV-R4100U |
| Fan Size | 120 Millimeters |
| Material | Aluminum |
| Case Type | Tower |
| Model Name | RSV-R4100U |
| Item Weight | 15.43 pounds |
| Manufacturer | Rosewill |
| Cooling Method | Air |
| Item model number | RSV-R4100U |
| Product Dimensions | 25 x 21 x 11.7 inches |
| Item Dimensions LxWxH | 25 x 21 x 11.7 inches |
| Number of USB 2.0 Ports | 2 |
| Number of USB 3.0 Ports | 2 |
| Motherboard Compatability | ATX |
| Power Supply Mounting Type | External Hex |
| Recommended Uses For Product | Business |
What Buyers Say
The most surprising thing about this chassis is the specific requirement for 3.5" HDDs to have three screw holes per side, which can be a real headache if you've got drives that only have two. People generally like the amount of storage you can cram in there and the fact that it feels pretty solid for the price. The included fans do their job, but don't expect whisper-quiet operation. It's definitely a case where you get what you pay for, with some quirks you'll need to work around.
“Man, this case is okay for the price, but seriously, who only supports 3-screw HDDs? Had to get creative with some of my older drives, what a pain!”
Common Praise
- The chassis offers ample space for 7 internal 3.5" HDDs.
- The build feels sturdy and doesn't have sharp edges.
- The included screws and accessories are plentiful for assembly.
- The front panel USB 3.0 ports are convenient.
Common Complaints
- Only 3.5" HDDs with three screw holes on each side are supported for mounting.
- Some users found the overall build quality to be less than expected.
- Cable management can be challenging due to limited routing options.
- The pre-installed fans, while functional, are not particularly quiet.
Ownership Tips
- You'll likely need to invest in zip ties and patience for effective cable management.
- The stock fans are functional but consider swapping them if noise is a major concern for your setup.
- Double-check your 3.5" HDD mounting holes before buying, or prepare for workarounds.
- The front panel lock is basic but does offer a layer of physical deterrence.
Frequently Asked Questions
What motherboard sizes are compatible with this chassis?
This chassis is compatible with ATX and CEB motherboards.
How many hard drives can I install?
You can install up to 7 internal 3.5" HDDs and 2 additional 5.25" devices.
Does it come with fans?
Yes, it includes 3 pre-installed PWM fans: one 120mm fan in the front and two 80mm fans in the rear.
Are there USB ports on the front panel?
Yes, the front panel features two USB 3.0 ports.
Is the front panel lockable?
Yes, it has a built-in front panel lock and key for added security.
Buying Guide
When looking at server chassis like this, you're essentially buying a metal box to house your server components. Focus on the number and type of drive bays you need, as this dictates your storage capacity. Also, check motherboard compatibility (ATX, CEB) and how many expansion slots are available for things like network cards or RAID controllers. Cooling is also key; make sure the fan configuration is adequate for your planned hardware, especially if you're stuffing it with many hot drives.
4U Rackmount Form Factor
This means the case is designed to fit into a standard server rack, taking up 4 'units' of vertical space. If you don't have a rack, this case will just be a large, heavy box.
7 internal 3.5” HDD bays
This tells you how many traditional hard drives you can install for storage. Each bay holds one 3.5-inch drive, which is common for bulk data storage.
ATX, CEB Compatible
This refers to the size of motherboards that will fit. ATX is a common desktop motherboard size, while CEB (Compact Electronics Bay) is a slightly larger standard often used in servers, giving you more options for server-grade boards.
1x 120mm PWM Fan, 2x 80mm PWM Fans
These are the included cooling fans. PWM (Pulse Width Modulation) means their speed can be controlled, potentially reducing noise when the system isn't under heavy load. The sizes indicate their airflow capacity and potential noise levels.
Alternatives
If this case doesn't fit, look for chassis with hot-swap drive bays for easier maintenance, or consider larger 5U or tower cases if rack mounting isn't a requirement and you need more internal space for cooling or larger components.
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