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Black ATX mid-tower case with mesh side panels and four 140mm fans visible

Rosewill

Rosewill Helium NAS ATX Mid Tower PC Case

SKU CH-BTBW-G7GP0

ATX mid-tower case with mesh panels, four 140 mm PWM fans and room for 10 x 3.5" plus 3 x 2.5" drives

  • Max graphics card length280 mm
  • Housing materialSteel / Plastic
  • Power supply mountingBottom
  • Supported motherboard sizesATX / ITX / Micro ATX
  • Side panel typeMesh
  • 3.5-inch internal bays10

Model Helium NAS

  • All-mesh side panels give unrestricted airflow for stable component temperatures
  • Four pre-installed 140mm PWM fans provide quiet, efficient cooling under heavy workloads
  • Ten 3.5" and three 2.5" drive bays support massive storage for home servers
  • ATX motherboard support plus front and top 360mm radiator mounts enable high-performance builds
  • 26mm cable routing space behind the motherboard simplifies clean assembly

Purpose-built NAS chassis

The Rosewill Helium NAS is an ATX mid-tower case designed for DIY network-attached storage, media servers or small-business file servers. Its steel-and-plastic frame supports ATX, Micro-ATX and ITX motherboards with the power supply mounted at the bottom. Four 140 mm PWM fans come pre-installed behind full-mesh side panels to move air across dense drive arrays.

Storage-first builders vs. compact systems

This case suits builders who need up to 10 x 3.5-inch and 3 x 2.5-inch drive bays in a single enclosure. Users planning a compact living-room PC or a minimalist workstation should look elsewhere, as the 19.1 x 9.05 x 18.67 inch footprint prioritises capacity over desk appeal.

Drive capacity and cooling headroom

Thirteen internal bays handle large media libraries, backups or virtual-machine images with room to grow. Front and top mounts accept 360 mm, 280 mm or 240 mm radiators, while the rear takes a 120 mm unit. Graphics cards up to 280 mm and CPU coolers up to 180 mm fit comfortably; longer GPUs or taller coolers will not clear the internal layout.

How it compares

Measured against everything we stock in Tower & Desktop PC Cases, at today’s prices. Recalculated every night.

Price $64.99
Cheaper than about 77% of the 1,468 comparable items (median $100.99).
Max graphics card length 280 mm
Lower than about 92% of the 894 comparable items (median 400 mm).

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Specifications

Product
Brand nameRosewill
Model nameHelium NAS
Product typeATX Mid Tower
Product colorBlack
Storage
3.5-inch internal bays10
2.5-inch internal bays3
Ports & slots
Expansion card slots7
Front panel ports1 x USB 3.1 Type-C / 2 x USB 3.0 / Audio
Power
Power supply includedNo
Size & build
Max graphics card length280 mm
Housing materialSteel / Plastic
Power supply mountingBottom
Side panel typeMesh
Dust filteringYes
Fan mounting optionsFront: 3 × 120 mm, 3 × 140 mm
Top: 3 × 120 mm, 2 × 140 mm
Rear: 1 × 120 mm, 1 × 140 mm
Product dimensions19.1 × 9.05 × 18.67 in
Product weight18 lb (8.16 kg)
Shipping weight8.17 kg
Package size565 × 533 × 279 mm
Compatibility
Supported motherboard sizesATX / ITX / Micro ATX
Radiator supportFront: 360 mm / 280 mm / 240 mm
Top: 360 mm / 280 mm / 240 mm
Rear: 120 mm
CPU cooler height limit180 mm
PSU length limit200 mm
More details
Included fansFront - 3 × 140 mm / Rear - 1 × 140 mm

Other versions of this model

2 more in the same range

Questions about this item

Will a full-size ATX board fit with a 280 mm graphics card and a 180 mm CPU cooler installed?

Yes, the case supports ATX motherboards and allows up to 280 mm GPU length and 180 mm cooler height.

How many 3.5-inch hard drives can I mount internally without extra brackets?

The chassis provides ten dedicated 3.5-inch drive bays for direct installation.

Are the front-panel USB 3.1 Type-C and USB 3.0 ports connected to the motherboard via standard internal headers?

The front I/O includes one USB 3.1 Type-C and two USB 3.0 ports designed for standard motherboard headers.

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