SilverStone RM23-502-MINI 2U Rackmount Server Chassis

SKU: SST-RM23-502-MINI

Form Factor: 2U Rackmount (430 x 88.5 x 400mm)

Motherboard: Micro-ATX, Mini-ITX only

External Bays: 2 x 5.25" external expansion bays

Internal Bays: 2 x 3.5" HDD, 1 x 2.5" SSD

Cooling: 2 x 80mm front fan mounts

Weight: 4.8 kg

The SilverStone RM23-502-MINI is a compact 2U rackmount server chassis designed for Micro-ATX and Mini-ITX systems requiring flexible expansion and storage configurations. Its 400mm-deep steel construction supports two external 5.25" device bays, two internal 3.5" drive positions, one internal 2.5" drive position, and four low-profile PCI/PCIe expansion slots.

With two front 80mm fan mounting positions, CPU cooler clearance up to 65mm, and support for ATX PS2, 2U Single, or 2U Redundant power supplies, the RM23-502-MINI suits compact rackmount workstations and specialised server builds.

Why Choose This SilverStone RM23-502-MINI 2U Rackmount Server Chassis

  • Supports Micro-ATX and Mini-ITX motherboards in a compact 400mm-deep 2U steel chassis, with four low-profile PCI/PCIe expansion slots.
  • Provides two external 5.25" device bays, two internal 3.5" drive positions, and one internal 2.5" drive position for flexible hardware configurations.
  • Features two front 80mm fan mounting positions and supports CPU air coolers up to 65mm tall.
  • Supports compatible ATX PS2, 2U Single, or 2U Redundant power supplies, with two front USB 3.1 Gen 1 Type-A ports.

1 Year Warranty

2U Ultra-Compact

2 × 80mm Fan Slots

Overview

SilverStone RM23-502-MINI is a compact 2U rackmount server chassis supporting Micro-ATX and Mini-ITX motherboards. Its 400mm depth accommodates two external 5.25" device bays, two internal 3.5" bays, one 2.5" bay and four low-profile expansion slots.

Who It Suits

  • Space-constrained rackmount builds requiring Micro-ATX or Mini-ITX support in a 400mm-deep chassis.
  • Small server integrators needing four low-profile expansion slots and two front 80mm fan mounting positions.
  • Budget-conscious builders requiring compatible ATX PS2, 2U Single or 2U Redundant PSU options.

Not suitable for ATX motherboards, high-expansion builds or systems requiring integrated hot-swap drive bays.

Before You Buy

  • Supports Micro-ATX and Mini-ITX motherboards only. ATX and larger motherboards are not supported.
  • SilverStone recommends a combined PSU and 5.25" device length of no more than 350mm, allowing 40mm of clearance for power cables.
  • Internal storage includes two 3.5" bays and one 2.5" bay. The two external 5.25" bays accommodate compatible 5.25" devices.
Full Specifications

Model
SST-RM23-502-MINI

Chassis Form Factor
2U rackmount, ultra-compact

Motherboard Support
Micro-ATX (9.6" x 9.6"), Mini-ITX (6.7" x 6.7") only

Main Metal Thickness
1mm

Drive Support - External
5.25" x 2 (external expansion bays)

Drive Support - Internal
3.5" x 2, 2.5" x 1

Cooling - Front
80 x 25mm fan slot x 2

CPU Cooler Clearance
65mm maximum height

Expansion Slots
4 x low-profile PCI / PCIe

Power Supply
ATX (PS2), 2U single, or 2U redundant (optional)

Front I/O
2 x USB 3.1 Gen 1 Type-A

Front Panel Controls
Power On/Off, system reset

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

Dimensions
430mm (W) x 88.5mm (H) x 400mm (D)

Volume
15.22 litres

Net Weight
4.8 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!

How does the RM23-502-MINI compare to the regular RM23-502?

The MINI is more compact: 400mm depth vs 580mm, supports only Micro-ATX and Mini-ITX (not full ATX), has 2 x 3.5" instead of 5, and 4 PCIe slots instead of 7. Choose MINI for space constraints, regular RM23-502 for standard server builds.

What power supply options does the RM23-502-MINI accept?

It supports standard ATX PS2, 2U single, or 2U redundant PSUs. SilverStone recommends a combined PSU and installed 5.25" device length of no more than 350mm, allowing 40mm for power cables.

Can I use this for NAS or hot-swap storage?

Yes, the RM23-502-MINI can be configured as a compact NAS, but its internal drive bays do not provide built-in hot-swap functionality. For integrated hot-swap storage, consider a suitable SilverStone RM21 or RM22 series chassis with the required backplane and drive trays.


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