Can the built in fan be replaced?

Technically yes, but we do not recommend it because the built-in fan does not use standard fan connector that you see in retail PC case fans. Please also keep in mind that malfunction occurring after fan replacement may also void warranty.

Do i need a sas controller with this to use my sas hdds on my gaming pc (aorus z590 ultra motherboard)?

The FS305-12G connectors are just pass-throughs so if your SAS HDDs require SAS controller to operate then they will behave the same when used in the FS305-12G. So the answer to your question is yes, you will need SAS controller to use SAS hard drive in the FS305-12G.

What is the max drive thickness im wanting to use 5 seagate 20tb ironwolf pros?

The Seagate 20TB Ironwolf Pros are standard sized 3.5" drives with thickness of 26.1mm, which is what the FS305-12G was designed for. They should fit without issues.

How is this supposed to connect sas drives if the outputs on the back are all sata?

Both SATA and SAS share the same infrastructure the port will support sas if you mini-SAS however you will need an adapter cable as it’s infrastructure is quite different. Either way you need a SAS controller as well.

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Silverstone Technology Hard Drive Enclosure Internal, 3 X 5.25 Inch to 5 X 3.5 Inch Hot-Swap SATA/SAS Hard Drive Cage, Up to 12Gbit/S Transfer Rate with All Aluminum Body (SST-FS305-12G)

Product ID: 181634653

Details

Brand
SilverStone
Color
silver
Hardware Interface
SAS
Hardware Platform
PC
Material
Aluminum

⚡12 Gbit/s max transfer

💾5x 3.5" SAS/SATA drives

🔒Individual metal key locks

135035 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Unlock pro-grade storage power with style and speed!

SECURE ACCESSIBLE - Trayless, screwless hot-swap design with individual metal key locks for pro-level data security.
PREMIUM BUILD STYLE - All-aluminum chassis with a sleek hairline brushed finish that complements any high-end setup.
BLAZING FAST TRANSFERS - Supports up to 12 Gbit/s SAS and 6 Gbit/s SATA speeds to keep your workflow seamless.
MAXIMIZE STORAGE DENSITY - Fits 5 drives in just 3 standard 5.25" bays for ultimate space efficiency.
SMART COOLING MONITORING - Built-in fan plus adjustable drive status LEDs and fan control system to keep drives cool and visible.

The SilverStone SST-FS305-12G is a premium all-aluminum hard drive enclosure that fits five 3.5" SAS/SATA drives into three 5.25" bays. It supports blazing 12 Gbit/s transfer rates, features trayless hot-swap capability, individual metal key locks for each drive, and an advanced cooling system with adjustable LEDs and fan control—perfect for professionals demanding secure, high-performance storage expansion.

Specifications

ASIN	B07ZWK1337
Best Sellers Rank	#927 in Enclosures
Brand	SilverStone
Built-In Media	Drive cage, keys
Color	silver
Compatible Devices	Desktop
Connectivity Technology	SATA
Customer Reviews	3.9 3.9 out of 5 stars (48)
Data Transfer Rate	12 gigabits_per_second
Enclosure Material	Aluminum
Global Trade Identification Number	00844761019518
Hard Disk Form Factor	3.5 inches
Hardware Interface	SAS
Hardware Platform	PC
Manufacturer	SilverStone Technology
Mfr Part Number	SST-FS305-12G
Model Number	SST-FS305-12G
Number of Items	1
Number of Packs	1
Supported Devices Quantity	3
UPC	844761019518
Warranty Description	1 Year Parts and Labor

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135035 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hungary.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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