We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver 2U rackmount server chassis with dual 5.25 inch front bays and USB ports

Silverstone Technology

Silverstone Technology RM23-502-mini 2U server chassis

SKU CH-E1YA-N39BF MPN RM23-502-mini

A 2U rackmount chassis for Micro-ATX boards with dual 5.25″ bays, two 3.5″ drives, one 2.5″ SSD, four low-profile slots and front USB 3.1 Gen1

  • TypeMicro ATX
  • 2U rackmount form factor fits standard server cabinets
  • Dual 5.25" external bays allow flexible optical or hot-swap device installation
  • Supports Micro-ATX and Mini-ITX motherboards up to 9.6" x 9.6
  • Four low-profile PCI/PCIe slots provide expansion capacity in a compact chassis
  • Front USB 3.1 Gen 1 Type-A ports deliver 5Gbps connectivity for peripherals

Compact 2U Micro-ATX Server Chassis

The Silverstone RM23-502-mini is a 2U rackmount enclosure designed for Micro-ATX and Mini-ITX motherboards up to 9.6 by 9.6 inches. It accepts ATX, 2U single, or 2U redundant power supplies and provides front USB 3.1 Gen1 ports for quick peripheral access. Builders get four low-profile expansion slots and a 65mm CPU cooler limit.

Suited for dense rack deployments needing legacy

This chassis fits users who require two external 5.25-inch bays alongside internal space for two 3.5-inch drives and one 2.5-inch SSD. It is not for builds that need full-height PCIe cards, more than four expansion slots, or CPU coolers taller than 65mm. The 400mm depth also rules out extra-long power supplies or oversized components.

65mm CPU cooler height limit decides fit

The maximum cooler height of 65mm is the critical constraint for thermal planning in this 88.5mm tall enclosure. Exceeding this prevents the top cover from closing and disrupts airflow from the dual 80mm front fan mounts. Verify your cooler specification against this ceiling before purchasing.

Highlights

  • 2U rackmount form factor fits standard server cabinets
  • Dual 5.25" external bays allow flexible optical or hot-swap device installation
  • Supports Micro-ATX and Mini-ITX motherboards up to 9.6" x 9.6
  • Four low-profile PCI/PCIe slots provide expansion capacity in a compact chassis
  • Front USB 3.1 Gen 1 Type-A ports deliver 5Gbps connectivity for peripherals

Specifications

TypeMicro ATX
Shipping weight2.27 kg
Package size127 × 127 × 127 mm

Questions about this item

How do I mount a motherboard in this 2U rack chassis and what clearance mistake should I avoid?

Install a Micro-ATX or Mini-ITX board using the 9.6 by 9.6 inch or 6.7 by 6.7 inch pattern; the CPU cooler must not exceed 65mm height or it will hit the top cover.

Which moving parts will need replacement after extended operation?

The front bracket accepts two 80mm by 25mm fans; these are the only active cooling components and will require periodic replacement as bearings wear.

What thermal limit appears first when the chassis runs continuously under load?

With only two 80mm front fan slots and a 65mm CPU cooler ceiling, processor temperature rise becomes the limiting factor before drive or power-supply thresholds are reached.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.