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Black 4U rackmount server chassis with twelve 3.5 inch drive bays and front USB ports

Rosewill

Rosewill RSV-R4012 4U rackmount server chassis 12 x 3.5" bays

SKU CH-N5TH-XE4AM MPN RSV-R4012

4U rackmount chassis holds twelve 3.5" drives, fits ATX boards, includes four PWM fans and front USB 3.2 Type-C

  • Chassis TypeRackmount
  • Form Factor4U
  • ColorBlack
  • Case MaterialSGCC
  • Motherboard Compatibility12" x 9.6" ATX, 11.2" x 8.2" Mini-ATX and below
  • Power SupplySupports ATX power supply

Chassis Type 4U · 12 Bays · 4 Fans

  • Twelve 3.5" drive bays provide petabyte-scale storage capacity
  • 4U form factor fits full-size ATX and Mini-ATX motherboards
  • 158 mm CPU cooler clearance supports high-wattage processors
  • Four PWM fans (two 120 mm front, two 80 mm rear) deliver focused airflow
  • Front USB 3.2 Type-C port enables 10 Gbps external transfers

4U rackmount chassis with twelve 3.5" bays

The Rosewill RSV-R4012 is a 4U rackmount server chassis built for ATX and Mini-ATX motherboards. It provides twelve internal 3.5-inch drive bays for high-capacity storage arrays. Seven expansion slots support add-in cards for networking or compute. This platform suits builders assembling storage servers or backup appliances.

Seven slots and 280 mm GPU limit define

Seven full-height expansion slots allow multiple PCIe cards, yet the maximum graphics card length is 280 mm. ATX power supplies up to 180 mm deep are supported. CPU coolers must not exceed 158 mm in height. Front-panel connectivity includes two USB 3.0 ports and one USB 3.2 Type-C port for external drives.

SGCC steel construction with included PWM fans

The chassis uses SGCC steel in a black finish for structural rigidity in rack environments. Two 120 mm PWM fans are pre-installed at the front, with two 80 mm fan positions at the rear. LED indicators show power status, drive activity and dual LAN activity. Front ports are accessible without opening the rack.

Highlights

  • Twelve 3.5" drive bays provide petabyte-scale storage capacity
  • 4U form factor fits full-size ATX and Mini-ATX motherboards
  • 158 mm CPU cooler clearance supports high-wattage processors
  • Four PWM fans (two 120 mm front, two 80 mm rear) deliver focused airflow
  • Front USB 3.2 Type-C port enables 10 Gbps external transfers

Specifications

BrandRosewill
ModelRSV-R4012
Chassis TypeRackmount
Form Factor4U
ColorBlack
Case MaterialSGCC
Motherboard Compatibility12" x 9.6" ATX, 11.2" x 8.2" Mini-ATX and below
Power SupplySupports ATX power supply
LED IndicatorsPower status, HDD activity, 2 x Lan activity
Internal 3.5" Drive Bays12
Expansion Slots7
Max CPU Cooler Height158 mm
Max GPU Length280 mm
Max PSU Length180 mm
Front Ports2 x USB 3.0 / 1 x USB 3.2 Type C
Fan OptionsFront: 2 x 120mm fans (2 x 120mm PWM fan included)
Rear: 2 x 80mm fans
Shipping weight14.50 kg
Package size665 × 575 × 285 mm

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Should I choose a chassis with 12 x 3.5" bays or one with fewer bays for my storage server?

Choose the 12-bay RSV-R4012 when you need to install up to twelve 3.5" HDDs or SSDs in a single 4U rackmount unit; fewer bays limit total raw capacity and may require additional enclosures.

What does the 280 mm maximum GPU length mean when I install a graphics card in this chassis?

Any full-height add-in card up to 280 mm long will fit in the seven expansion slots, so measure your card before purchase to confirm clearance.

The front panel lists USB 3.2 Type-C — what transfer speed does that port actually deliver?

The front USB 3.2 Type-C port supports up to 10 Gbps, matching the USB 3.2 Gen 2 specification for fast external-drive transfers.

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