Is all of the weight held by those 4 screws? Any for the back of the case?

That is completely up to you. With a minimum purchase, yes the 4 screws would hold the entire weight of the contents. The screws should be able to support the weight, but they may be difficult to position in order to tighten them. I bought a set of rails for the bottom case of my rack. Another option would to be to install the case in your rack empty, and then add the contents. That postpones any problems until you need to service anything inside. If you do buy the rails, the bottom machine can support the next machine until you get those screws tightened.

Yes it will accommodate an EATX board. I have a dual CPU Opteron board (H8DAE-2) in my home media server using this case - no issues.

Can you remove the 3.5" HD cages and replace them with Hot Swap Cages? Measuring the cages in the pictures it appears hot swap cages would fit.

Yes, I was able to reuse my (non-Rosewill branded) hot swap cages from my server tower and put into this case. In order to mount them securely, you can reuse the thin metal rails that are used to secure the pre-installed hard drive cages/fans and put them on the side of the hot swap cages. It will then slide right into the case and click into the case. It was a tight fit but they are very secure without requiring any screws for mounting.

Can i remove the HDD trays and front fans and mount 12 5.25 bays? I have 3 iStarUSA Hot-Swap HDD Cages and want to mount them in this case.

See the RSV-L4412 which already does this pre-configured.

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Rosewill 4U Server Chassis/Server Case/Rackmount Case, Metal Rack Mount Computer Case Support with 15 Bays & 7 Fans Pre-Installed (RSV-L4500)

Rosewill 4U Server Chassis/Server Case/Rackmount Case, Metal Rack Mount Computer Case Support with 15 Bays & 7 Fans Pre-Installed (RSV-L4500)

Product ID: 5529447

Details

Brand
Rosewill
Color
Black
Material
Metal
Product Dimensions
7"D x 25"W x
Size
4U 15 Bays & 7

💾15 internal 3.5" HDD bays

🔐Front door with key lock security

❄️7 pre-installed high airflow fans

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A$132

Duties & taxes included

In stock

Sold byAmazon AustraliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Scale, cool, and secure your server like a pro — don’t get left behind!

SECURE FRONT ACCESS - Lockable front door ensures your hardware stays safe and sound.
RACK READY ROBUSTNESS - Solid 1.0mm steel chassis built to dominate any 4U rack.
CONVENIENT CONNECTIVITY - Front panel USB 2.0 ports for effortless peripheral access.
MASSIVE STORAGE CAPACITY - Pack up to 15 HDDs for unstoppable data power.
ULTIMATE COOLING ARSENAL - 7 strategically placed fans keep your system ice-cold under pressure.

The Rosewill RSV-L4500 is a heavy-duty 4U rackmount server chassis designed for professionals demanding high scalability and reliability. Featuring 15 internal 3.5" drive bays, seven pre-installed cooling fans, and a lockable front door, it offers exceptional thermal management and security. Its robust steel construction supports E-ATX/ATX motherboards and multiple expansion slots, making it ideal for dense server builds or NAS setups. With front USB ports and dust-resistant filters, it balances convenience with industrial-grade performance — a must-have for millennial managers building future-proof infrastructure.

Specifications

ASIN	B0091IZ1ZG
Brand	Rosewill
Built-In Media	Server Chassis, Keys, Screws
Color	Black
Compatible Devices	Server
Customer Reviews	4.3 4.3 out of 5 stars (1,101)
Enclosure Material	Metal
Global Trade Identification Number	00898745051698
Is Assembly Required	No
Item Dimensions D x W x H	7"D x 25"W x 7"H
Item Weight	23.1 Pounds
Manufacturer	Rosewill
Mfr Part Number	RSV-L4500
Model Number	RSV-L4500
Mounting Type	Rack Mount
Size	4U, 15 Bays & 7 Fans
UPC	898745051698 782386495532
Warranty Description	1 year warranty

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