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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

  • Form factor4U
  • Max graphics card length280 mm
  • Chassis styleRackmount
  • Housing materialSGCC
  • Supported motherboard sizes12 in x 9.6 in ATX, 11.2 in x 8.2 in Mini-ATX and below
  • Power supplySupports ATX power supply

Chassis Type 4U · 12 Bays · 4 Fans

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  • 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.

How it compares

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

Price $147.99
Cheaper than about 77% of the 1,006 comparable items (median $222.49).
Max graphics card length 280 mm
Higher than about 60% of the 36 comparable items (median 275 mm).

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Specifications

Product
Brand nameRosewill
Model nameRSV-R4012
Product colorBlack
Storage
3.5-inch internal bays12
Ports & slots
Expansion card slots7
Front panel ports2 x USB 3.0 / 1 x USB 3.2 Type C
Power
Power supplySupports ATX power supply
Size & build
Form factor4U
Max graphics card length280 mm
Chassis styleRackmount
Housing materialSGCC
Fan mounting optionsFront: 2 × 120 mm fans (2 × 120 mm PWM fan included)
Rear: 2 × 80 mm fans
Shipping weight14.50 kg
Package size665 × 575 × 285 mm
Compatibility
Supported motherboard sizes12 in x 9.6 in ATX, 11.2 in x 8.2 in Mini-ATX and below
CPU cooler height limit158 mm
PSU length limit180 mm
More details
Status lightsPower status, HDD activity, 2 x Lan activity

Other versions of this model

5 more in the same range

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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