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SilverStone RM31

3U rackmount case

329€95
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Overview

SilverStone RM31: 3U server rack

The SilverStone RM31 is a high-performance 3U rack server chassis designed for demanding professional environments where power, flexibility and thermal efficiency are essential. Designed to accommodate demanding configurations, it supports up to SSI-EEB motherboards, offers eight full-height PCI expansion slots and a flexible dual power supply configuration to ensure continuous availability.

With compatibility for liquid cooling radiators up to 360mm and the ability to install up to six 120mm fans in a push-pull configuration, the RM31 ensures exceptional airflow and optimal thermal control, even under the heaviest loads such as multi-GPU systems for AI or advanced workstations. Its robust steel design, front USB ports including USB-C, and compatibility with rail kits make this chassis ideal for server infrastructures, professional multimedia stations, and standard rack deployments.
 

Key features

  • Robust 3U steel rack chassis, optimised for intensive professional use
  • Dual power supply support: compatible with two SFX-L units or 2U CRPS redundant power supply modules for maximum reliability
  • Extreme cooling: supports radiators up to 360 mm and up to 6 120 mm fans in push-pull configuration for highly efficient thermal management
  • Compatible with SSI-EEB, SSI-CEB, E-ATX, ATX, Micro-ATX and Mini-ITX motherboards
  • 8 full-height PCIe slots for expansion cards
  • Supports CPU coolers up to 110 mm in height
  • Internal storage bays: 2x 3.5" + 2x 2.5" or 4x 2.5"
  • Front ports include USB-C x 1 and USB 3.0 x 2
  • LED indicators for power status, HDD activity and LAN activity
  • Can be mounted with RMS01 / RMS09-20 rail kits (not included)
Specifications
Select your criteria

General information

Product name

SilverStone RM31

Brand

SilverStone

Model

SST-RM31

Main characteristics

Graphic card max. length

458 mm

Max height CPU fan

110 mm

Power supply max. length

250 mm

Power format

SFX-L
SFX

Case format

3U rack

Use

Server

Material

Steel

Motherboard format

ATX
E-ATX
Micro ATX
Mini ITX
SSI CEB
SSI EEB

Power supply supplied

No

Design

Screwless fixing system

No

Case color

Black

Front color

Black

Integrated display

No

Mesh front

No

Glass

No

Tempered glass

No

Fish tank (panoramic view)

No

LED RGB

No

ARGB LED

No

Water cooling compatible

Yes

Motherboard connector location

Standard connectors (on the motherboard)

Expansion slots

Number of PCI slots

8

Low profile

No

Number of visible 3.5" slots

0

Number of invisible 3.5" slots

0

Number of 2.5" slots

2

Number of 2.5"/3.5" slots

2

Number of visible 5.25" slots

0

Number of invisible 5.25" slots

0

Number of Slot-in slim 5.25'' slots

0

Number of Slim 5.25'' slots

0

Front connectivity

Location of expansion ports

Front

Connector(s) available

2 X USB 3.0
1 X USB 3.0 Type C

Cooling

Fan(s) included

Yes

Number of rear fan(s) slots

2 X 60mm

Quantity of rear fan(s) supplied

0

Number of front fan(s) slots

3 X 120mm

Quantity of front fan(s) supplied

0

Water cooling

AIO radiator compatibility

360mm radiator
120mm radiator
240mm radiator

Front AIO slot(s)

360mm radiator
120mm radiator
240mm radiator

Above AIO slot(s)

N/A

Side AIO slot(s)

N/A

Rear AIO slot(s)

N/A

Physical characteristics

Width

438 mm

Height

132 mm

Depth

488 mm

Volume

28.21 l

Warranties

Commercial warranty

Legal warranty

Safety Information

Responsible person

SilverStone Technology GmbH

Postal address

Kaiserswerther Str. 215, 40474 Düsseldorf, Allemagne

Electronic Address

info.eu@silverstonetek.de

Product referenced on 27 Feb 2026

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