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Black steel 4U rackmount server chassis, front USB-C and USB 3.0 ports, three 120mm fan mounts, two 80mm rear fans

Silverstone

Silverstone SST-RM4A 4U Rackmount Server Chassis Black

SKU CH-VAPZ-BENWT MPN SST-RM4A

A 4U steel rackmount chassis supporting SSI-EEB motherboards, eight expansion slots, dual 3.5-inch and four 2.5-inch drives, front USB Type-C and dual USB 3.0.

  • Form factor4U
  • Chassis styleRackmount
  • Housing materialSteel
  • Supported motherboard sizesATX / Extended ATX / Micro ATX / Mini ITX / SSI CEB / SSI EE
  • Power supplyPS2 (ATX)
  • Status lights1 x Power status 1 x HDD activity 2 x LAN activity
  • Supports SSI-EEB and ATX boards for flexible server builds
  • Fits 360 mm radiators and dual 80 mm rear fans for liquid cooling
  • Eight PCI slots give room for multiple add-in cards
  • Front panel includes USB Type-C and two USB 3.0 ports for fast access
  • Steel 4U rackmount frame weighs 16.82 lbs and measures 17.56 x 17.32 x 6.93 inches

Rackmount Server Chassis 4U

The SilverStone SST-RM4A is a 4U rackmount server chassis built from steel with a black finish. It accepts ATX, Extended ATX, Micro ATX, Mini ITX, SSI CEB and SSI EEB motherboards and uses a standard PS2 ATX power supply. Front I/O includes one USB Type-C port and two USB 3.0 ports for local access.

Storage Density And Expansion Limits

The chassis holds two 3.5-inch bays that also accept three 2.5-inch drives plus four dedicated 2.5-inch bays, giving eight PCI expansion slots for add-in cards. Builds needing more than six internal drives or more than eight full-height cards will exceed the available bays and slots.

Sustained Thermal Behaviour

Front cooling supports three 120mm fans or a single 360mm radiator alongside combinations of 120mm and 240mm radiators, while the rear mounts two 80mm fans. CPU cooler clearance reaches 148mm without the expansion card retainer and 137mm with it fitted, and the power supply length limit is 255mm.

How it compares

Measured against everything we stock in Rackmount Server Cases, at today’s prices. Recalculated every night.

Price $173.99
Cheaper than about 69% of the 1,006 comparable items (median $222.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSilverStone
Model nameSST-RM4A
Product colorBlack
Storage
3.5-inch internal bays3.5 in x 2 (compatible with 2.5 in x 3)
2.5-inch internal bays4
Ports & slots
Expansion card slots8
Front panel ports1 x USB Type-C
2 x USB 3.0
Power
Power supplyPS2 (ATX)
Size & build
Form factor4U
Chassis styleRackmount
Housing materialSteel
Fan mounting optionsFront - 3 × 120 mm / Rear - 2 × 80 mm
Product dimensions17.56 in × 17.32 in × 6.93 in
Product weight16.82 lb (7.63 kg)
Shipping weight8.62 kg
Package size559 × 533 × 203 mm
Compatibility
Supported motherboard sizesATX / Extended ATX / Micro ATX / Mini ITX / SSI CEB / SSI EEB
CPU cooler height limitw/ expansion card retainer: 137 mm
w/o expansion card retainer: 148 mm
PSU length limit255 mm
Radiator supportFront: 120 mm x 3 / 120 mm x 1 + 240 mm x 1 / 360 mm x 1
More details
Status lights1 x Power status
1 x HDD activity
2 x LAN activity

Questions about this item

Which motherboard form factors fit in the SST-RM4A so I can reuse my existing board?

The chassis accepts ATX, Extended ATX, Micro ATX, Mini ITX, SSI CEB and SSI EEB motherboards.

Will my current 240 mm radiator still work if I move it into this 4U rackmount case?

Yes, the front mount supports a 240 mm radiator alongside a 120 mm unit, or a single 360 mm radiator.

What front-panel lights tell me the SST-RM4A is running normally after I power it on?

One power-status LED, one HDD-activity LED and two LAN-activity LEDs indicate normal operation.

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