







Case Chieftec Hunter III - GS-03B-OP
- Form factor
- Middle Tower
- Panel
- Tempered glass
- Max. cooler size
- 178 mm
- Max. graphics card size
- 425 mm
- RGB
- Yes
Description
Chieftec Hunter III GS-03B-OP is a middle tower case aimed at mid-range to high-end gaming and workstation configurations. It supports a wide range of motherboards – from Mini ITX to Extended ATX, giving you the freedom for serious upgrades. The tempered glass side panel provides visibility to components and lighting, while the four pre-installed 120 mm A-RGB fans ensure ready airflow and aesthetics right out of the box. A maximum graphics card length of 425 mm and a cooler height of up to 178 mm mean you can comfortably think about large GPUs and massive air coolers.
What you get
You get a case with a very flexible cooling configuration – up to 3 fans in the front, 3 on top, 1 at the back, and 2 on the sides, plus an option for water cooling up to 360 mm in the front and top. This allows you to build either a quiet build with lower RPMs or aggressive airflow for a powerful CPU and GPU under load. The seven expansion slots and support for long graphics cards up to 425 mm provide a good foundation for a serious gaming or workstation system. Three 2.5" slots and two 3.5" bays cover a combination of fast SSD storage for games/projects and large HDDs for archives and media. The power supply is mounted at the bottom, with a length of up to 200 mm, helping with better weight distribution and cleaner internal airflow.
- Case form factor Middle Tower, suitable for balancing component space and compact system size.
- Support for motherboards ATX, Micro ATX, Mini ITX, and Extended ATX, giving you freedom from budget to more serious high-end platforms.
- Pre-installed 4 x 120 mm A-RGB fans (3 in the front and 1 at the back), so the optical look and basic airflow are ensured right from the start.
- Rich cooling options: in the front and top up to 3 x 120 mm or 3 x 140 mm, at the back up to 1 x 140 mm, and on the sides 2 x 120 mm for fine-tuning airflow.
- Support for water cooling up to 360 mm in the front and top plus 120 mm at the back, allowing for a more serious CPU custom or AIO loop.
- Maximum graphics card length 425 mm and cooler height 178 mm, so large GPUs and high-end air coolers fit comfortably.
- Total 2 x 3.5" and 3 x 2.5" drive bays, sufficient for a combination of several SSDs and a large HDD for storage of games, projects, and media.
- Power supply without included PSU, supporting units up to 200 mm, mounted at the bottom for cleaner cable management and better cooling.
- Side panel made of tempered glass, highlighting RGB lighting and the overall build.
Who it is suitable for
It is suitable if you are building a gaming or workstation PC with a powerful GPU, many fans, and/or water cooling and want to showcase them behind a glass panel. It is a good choice for mid-range and high-end configurations with an ATX or Extended ATX motherboard and plenty of storage. If you are looking for a super compact or ultra-minimalist case without an emphasis on RGB, this probably won't be your style.
The combination of rich airflow, space for long graphics cards, the possibility for 360 mm water cooling, and the already built-in A-RGB fans makes Chieftec Hunter III GS-03B-OP a solid foundation for a serious and visually complete build.
Full specifications
- Manufacturer
-
Chieftec
- Product code
- GS-03B-OP
- Format
-
ATXMini ITXMICRO ATXExtended ATX
- Form factor
- Middle Tower
- Supported fans
-
Front: 3 x 120 mm or 3 x 140 mmTop: 3 x 120 mm or 3 x 140 mmRear: 1 x 120 mm or 1 x 140 mmSide: 2 x 120 mm
- Included fans
-
Pre-installed fans: Front: 3 x 120 mm A-RGBRear: 1 x 120 mm A-RGB
- Panel
- Tempered glass
- Expansion slots
-
7
- Number of 2.5" / 3.5" slots
-
2 x 3.5''3 x 2.5"
- Number of 5.25" slots
-
No
- I/O ports
- USB 3.2 Gen2 Type C, 2 USB3.0, Audio-out (AZALIA / HD-Audio), Mic-In
- Max. cooler size
- 178 mm
- Max. graphics card size
- 425 mm
- Power supply unit power
-
Without power supply unit
- Supported power supplies
-
Up to 200mm
- Power Supply Unit Location
- Down
- Water cooling support
-
Front: Up to 360 mmTop: Up to 360 mmRear: 120 mm
- Color
-
Black
- Dimensions
- 440 x 238 x 450 mm
- Weight (kg)
- 8.06 kg
- RGB
-
Yes
- Warranty
- 24 months
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