SilverStone RM52 5U Rackmount Server Chassis

SKU: SST-RM52

Form Factor: 5U Rackmount (440 x 220 x 560mm, 605mm with fan cage)

Motherboard: SSI-EEB, SSI-CEB, E-ATX, ATX, Micro-ATX, Mini-ITX

Radiator Support: Front 360mm x 2 or 120mm x 4, rear 120mm

Expansion: 8 slots, cards up to 512mm (without front fans, radiators or internal radiator bracket)

CPU Cooler Clearance: 181mm with expansion card retainer, 192mm without

Power Supply: ATX / Mini Redundant / 2U Redundant + optional SFX

The SilverStone RM52 is a 5U rackmount server chassis designed for high-performance workstations, GPU computing systems, and industrial servers requiring extensive liquid cooling support. Supporting SSI-EEB, SSI-CEB, E-ATX, ATX, Micro-ATX, and Mini-ITX motherboards, it provides a versatile foundation for demanding professional hardware. Its durable steel construction and flexible horizontal rackmount or upright placement make it suitable for industrial environments and high-end home computing setups.

Featuring support for two front 360mm liquid cooling radiators, eight PCI expansion slots, and expansion cards up to 512mm long in configurations without front fans, radiators, or the internal radiator bracket, the RM52 offers substantial cooling and hardware expansion flexibility. Three included rear cooling fans, an expansion card retainer, and compatibility with multiple PSU formats, including an optional secondary SFX or SFX-L power supply, make it a versatile platform for advanced workstation and server builds.

Why Choose This SilverStone RM52 5U Rackmount Server Chassis

  • Supports SSI-EEB, SSI-CEB, E-ATX, ATX, Micro-ATX and Mini-ITX motherboards, with horizontal rackmount or vertical placement and optional RMS05-22 sliding rails.
  • Supports two front 360mm radiators or four 120mm radiator positions, with six front fan mounting positions and three included rear fans.
  • Eight expansion slots accommodate cards up to 512mm without front fans, radiators or the internal radiator bracket, with 365mm clearance under SilverStone's specified dual-radiator configuration.
  • Supports internal 3.5"/2.5" drive mounting, PS2 (ATX), Mini Redundant or 2U Redundant primary PSUs, and an optional secondary SFX/SFX-L power supply.

1 Year Warranty

Dual 360mm Radiators

8 Expansion Slots

Overview

SilverStone RM52 is a 5U rackmount chassis for GPU and AI servers with support for dual front 360mm radiators. It supports SSI-EEB motherboards, CPU coolers up to 181mm with the expansion card retainer or 192mm without, and graphics cards up to 512mm without front fans, radiators or the internal radiator bracket. Local Singapore warranty support through Mansa.

Who it suits

  • If you water-cool both CPU and GPUs, the front fits two 360mm radiators, double the radiator room of the RM51.
  • Long expansion cards up to 512mm fit without front fans, radiators or the internal radiator bracket, while dual 360mm radiators reduce clearance to 365mm.
  • Home lab users can stand it upright or lay it flat, and add a second SFX PSU in place of the 3.5" drive cage.
  • Not for shallow racks or storage servers. It is 560mm deep without the rear fan cage and has no hot-swap bays.

Before you buy

  • Card length drops to 365mm with dual radiators installed (each radiator plus fans 53mm thick). SilverStone's manual has the full table.
  • CPU cooler height is 181mm with the expansion card retainer installed, or 192mm without it.
  • Primary PSU length is 160–190mm depending on configuration, with no stated limit after removing the 3.5" drive cage. Compatible 2U redundant PSUs require V3.0 or later.
Full Specifications

Model
SST-RM52

Chassis Form Factor
5U rackmount, horizontal or vertical placement

Material
Steel

Motherboard Support
SSI-EEB, SSI-CEB, Extended ATX, ATX, Micro-ATX, Mini-ITX

Drive Support - Internal
3.5" x 2 (compatible with 2.5" x 3) + 3.5" x 2 (compatible with SFX PSU), 2.5" x 4

Cooling - Front
120mm x 6

Cooling - Rear
Rear I/O: 120mm x 1 / 140mm x 1 (1 x 140mm fan included); rear fan cage: 80mm x 2 (2 x 80mm fans included)

Radiator Support - Front
120mm x 4 / 360mm x 2

Radiator Support - Rear
120mm x 1

CPU Cooler Clearance
181mm with expansion card retainer, 192mm without

Expansion Slots
8

Graphics Card Length
512mm (no front fans, radiators or internal radiator bracket) / 365mm (dual radiators, 53mm each with fans)

Expansion Card Width
160mm with expansion card retainer, 198mm without

Power Supply - Primary
PS2 (ATX) / Mini Redundant / 2U Redundant (V3.0 or after)

Power Supply - Secondary
SFX / SFX-L (occupies 3.5" bracket)

PSU Length Limit
160mm to 190mm (no limit with 3.5" drive cage removed)

Front I/O
1 x USB Type-C, 2 x USB 3.0

LED Indicators
Power status x 1, HDD activity x 1, LAN activity x 2

Extra
Side switch for chassis intrusion security, expansion card retainer included

Slide Rail
RMS05-22 (sold separately, chassis depth limit 560mm)

Dimensions
440mm (W) x 220mm (H) x 605mm (D) incl. rear fan cage; 560mm (D) excl.

Volume
58.56 litres incl. rear fan cage, 54.21 litres excl.

Net Weight
11.45 kg

Warranty

1 YEAR WARRANTY

Avertek Enterprises Pte Ltd
25 Kallang Ave #03-03, Singapore 339416
Contact: 6341 7839

FAQs

How long will it take to receive my purchase?

Standard Shipping - 3 to 5 days
Express Shipping - 1 to 2 days

Can I opt for store pickup?

Yes, we are open daily for collection from 11 AM - 6.30 PM.
Address: 1 Ubi View #01-22, Focus One Building Singapore 408555 (Door located nearest to carpark exit gantry) We will contact you once your order is ready for collection!

What is the difference between the RM52 and RM51?

The RM52 supports two front 360mm radiators and graphics cards up to 512mm without front fans, radiators or the internal radiator bracket. With dual radiators installed, card clearance is 365mm under SilverStone's specified configuration. The RM52 measures 560mm deep without its rear fan cage.

The RM51 supports one front 360mm radiator and graphics cards up to 455mm without front fans or radiators. It measures 485mm deep without its rear fan cage and includes two 180mm front fans.

Does the RM52 come with rack rails?

No. SilverStone sells the matching RMS05-22 slide rails separately. The chassis has reserved mounting holes for them.


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