How many HDD can we install in this chassis?

You can install up to 5 HDD and 1 SSD in this chassis.

How many total fans does it hold and what size?

This case can fit a total of four fans, three 80mm fans and one 60mm fan. For more details on this case model and to download its manual, please check out its product page on our website: https://www.silverstonetek.com/en/product/info/server-nas/RM23-502/

Will it fit an e-atx motherboard?

No, this case fits a full size ATX motherboard. You may want to double check the dimensions of the motherboard as well. The maximum motherboard size that this case can fit is 12" x 9.6".

Can anyone recommend a power supply that fits nicely in this case?

For server use, our Decathlon series of PSUs from 550W to 850W are recommended for use in this case. You can check them out at the below link: https://www.amazon.com/dp/B091CHV34M?th=1

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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SilverStone Technology 2U Dual 5.25" Drive Bay ATX rackmount Industrial Storage Server Chassis with USB 3.1 Gen1 Interface, SST-RM23-502

Product ID: 503817286

Details

Brand
SilverStone
Case type
Tower
Colour
silver
Motherboard compatability
ATX
Recommended uses for product
Business

⚡USB 3.1 Gen1 5Gbps high-speed interface

💽Supports 1x 2.5" SSD + 5x 3.5" HDD bays

🖥️Fits full-size ATX motherboard & PSU

Description

🚀 Power, Storage & Speed — Rackmount Reinvented for the Modern Pro

OPTIMIZED COOLING DESIGN - Built-in fan bracket supports up to three 80mm fans for efficient airflow in a compact 2U form factor.
BLAZING FAST USB 3 1 GEN 1 - 5Gbps interface ensures lightning-quick data transfers, backward compatible for seamless connectivity.
MASSIVE STORAGE EXPANSION - Dual 5.25" bays plus 6 internal drive slots let you scale your storage like a pro.
RACKMOUNT READY WITH FULL ATX POWER - Use standard ATX PSUs up to 180mm depth—no proprietary hassles, just pure power flexibility.
PROFESSIONAL GRADE BUILD COMPATIBILITY - Robust alloy steel chassis with 7 low-profile expansion slots and sliding rail support for easy rack integration.

The SilverStone SST-RM23-502 is a 2U rackmount server chassis engineered for professionals demanding full ATX motherboard and PSU compatibility in a compact footprint. Featuring dual 5.25" bays, support for up to six drives, USB 3.1 Gen1 interface, and optimized airflow with up to three 80mm fans, it delivers versatile storage expansion and high-speed connectivity. Its rugged alloy steel construction and sliding rail compatibility make it a cost-effective, high-performance solution for industrial and home lab environments.

Specifications

ASIN	B0917G5HT2
Antenna Location	Business
Brand	SilverStone
Case Type	Tower
Case type	Tower
Color	silver
Colour	silver
Compatible Devices	Server
Cooling Method	Air
Customer Reviews	4.3 out of 5 stars 24 Reviews
Enclosure Material	Alloy Steel
Hard Disk Form Factor	3.5 Inches
Internal Bays Quantity	7
Item Dimensions D x W x H	8.9H centimeters
Item Weight	6.8 kg
Manufacturer	SilverStone Technology
Material	Alloy Steel
Mfr Part Number	CAS-SILV-SST/RM23502
Model Name	SST-RM23-502
Model Number	CAS-SILV-SST/RM23502
Motherboard compatability	ATX
Number of Fans	3
Number of Items	1
Other Special Features of the Product	Built-In Fan
Power Supply Mounting Type	Rear Mount
Recommended uses for product	Business
Supported Motherboard	ATX
Total USB 3.0 Ports	1
UPC	844761021160

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