A09 Black MINI-ITX 0.8mm SPCC Desktop Computer Case Fit in Flex PSU
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AI Verdict
This is a 3.8L Mini-ITX case made of 0.8mm SPCC steel, designed for Flex PSUs and CPU coolers under 40mm with a 3.5” HDD, best for ultra-compact, low-power builds.
This case is an extreme space-saver at 3.8L and 9 x 7.4 x 3.5in, making it a strong fit for specific ultra-compact needs like HTPCs or very low-power systems. However, its strict CPU cooler height limits (40mm with 3.5” HDD) and lack of dedicated fan mounts make it unsuitable for anything beyond basic computing or APU builds.
If you need more cooling or CPU cooler clearance, look for Mini-ITX cases with dedicated fan mounts and CPU cooler support over 65mm.
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Pros
- Its 3.8L volume and 9 x 7.4 x 3.5in dimensions make it extremely small for Mini-ITX systems.
- Constructed from 0.8mm SPCC alloy steel, providing structural support.
- Designed specifically to fit Flex PSUs (5.9 x 3.2 x 1.6in).
- Includes a PCIe slot, two WiFi antenna holes, two USB 3.0 ports, and HD audio on the front panel.
- Features abundant heat emission holes on the front panel and sides to aid airflow.
Cons
- CPU cooler height is severely restricted to 40mm when a 3.5” HDD is installed, 53mm with a 2.5” SSD, or 63mm with an M.2 SSD.
- Does not support any chassis fans, relying solely on passive airflow through emission holes.
- Cable management space behind the motherboard is limited, making builds challenging.
- Front panel boards can obstruct internal components during assembly.
- Only compatible with Flex ATX power supply units, not standard ATX PSUs.
Dimension Scores
The 3.8L volume and Flex PSU support are efficient for space, but the lack of dedicated fan mounts limits thermal efficiency for anything beyond low-power components.
Without any included or supported chassis fans, noise levels are entirely dependent on the chosen CPU cooler and PSU fan, making it average for a small form factor case.
The 0.8mm SPCC alloy steel construction provides a durable and robust feel, which is above average for its budget price band.
User reports indicate limited space for cable routing behind the motherboard, making clean cable management a significant challenge.
Best For
- Ultra-compact home theater PCs (HTPCs) that need to fit into tight spaces.
- Low-power Mini-ITX builds using integrated graphics or very short, low-profile GPUs.
- Small servers or network attached storage (NAS) setups where space is a primary concern.
- Portable desktop setups that need to fit into backpacks or luggage.
Not Recommended For
- High-performance gaming systems requiring large GPUs or extensive cooling.
- Users who need to install standard ATX power supplies or large 3.5” HDDs without significant CPU cooler height compromises.
- Beginners to PC building due to the confined space and cable management challenges.
Watch Out For
- CPU cooler height is capped at 40mm if you plan to use a 3.5” HDD, which severely limits cooler options.
- You can't install any chassis fans, so cooling relies entirely on the case's emission holes and component fans.
- Cable management is a pain because there's limited space behind the motherboard tray.
- The front panel's internal boards can get in the way when you're trying to install other components.
- You're stuck with a Flex ATX PSU; a standard ATX power supply won't fit.
Full Specifications
| ASIN | B09KZVNZ49 |
| Brand | Goodisory |
| Color | Black |
| Series | A09 |
| Material | Alloy Steel |
| Case Type | Desktop |
| Model Name | A09 |
| Item Weight | 2.6 pounds |
| Manufacturer | SKTC |
| Cooling Method | Air |
| Product Dimensions | 7.4 x 3.5 x 9 inches |
| Item Dimensions LxWxH | 7.4 x 3.5 x 9 inches |
| Number of USB 2.0 Ports | 2 |
| Number of USB 3.0 Ports | 2 |
| Motherboard Compatability | Mini ITX |
| Power Supply Mounting Type | Bottom Mount |
What Buyers Say
People buying this case are mostly looking for something tiny, and it definitely delivers on the small footprint, fitting into backpacks and tight spaces. The steel construction feels more substantial than you'd expect for the price. However, the biggest headache for builders is consistently the extremely tight internal space, especially for cable management, which can turn assembly into a frustrating puzzle. The limited CPU cooler clearance and complete absence of case fan support also mean you're really restricted to low-heat components if you want stable temperatures.
“Man, this thing is SMALL. Like, really small. Getting everything in there was a nightmare with the cables, but now it's done, it fits right behind my monitor and I love it for my little media server. Just don't try to put a big CPU cooler in it, seriously.”
Common Praise
- Its 3.8L volume and 9 x 7.4 x 3.5in dimensions are perfect for ultra-compact builds.
- The 0.8mm SPCC steel material feels durable and protective for internal components.
- The case is suitable for building a portable Steam Machine or HTPC.
- Abundant heat emission holes are present on the front panel and sides.
Common Complaints
- CPU cooler height restrictions are very tight, especially with a 3.5” HDD (40mm).
- There's no support for any chassis fans, relying only on passive cooling.
- Cable management is difficult due to minimal space behind the motherboard.
- The internal boards for the front panel can obstruct component installation.
- Only Flex ATX PSUs fit, limiting power supply options.
Ownership Tips
- You'll spend a lot of time planning cable routes before you even start building, because once components are in, space is non-existent.
- Even with the 'abundant' holes, you need to pick low-TDP components or expect higher temps, especially if you're not using an M.2 SSD.
- Finding a Flex PSU that isn't super loud can be a challenge, and its fan will likely be your primary noise source.
- The front USB 3.0 ports are handy, but the HD audio jack might be a tight squeeze with some motherboard headers.
Frequently Asked Questions
What type of power supply does this case support?
The Goodisory A09 case is designed to fit a Flex PSU, specifically those measuring 5.9 x 3.2 x 1.6in or smaller. Standard ATX power supplies are not compatible.
What is the maximum CPU cooler height?
The maximum CPU cooler height depends on your storage configuration. It's 63mm with an M.2 SSD, 53mm with a 2.5” SSD, and 40mm if you install a 3.5” HDD.
Can I install a dedicated graphics card?
Yes, it has one PCIe slot. While it can accommodate a long GPU with a 50mm riser cable, it's generally recommended for power color ITX versions or Quadro cards due to space and cooling constraints.
Does this case come with any fans?
No, the case does not support any chassis fans. Cooling relies on the abundant heat emission holes and any fans on your CPU cooler or GPU.
What are the dimensions of the case?
The case measures 9 x 7.4 x 3.5 inches (22.9 x 18.8 x 8.9 cm) and has a volume of 3.8 liters.
Buying Guide
When you're looking at a Mini-ITX case this tiny, you need to understand that every millimeter counts. You're trading expandability and cooling capacity for a minuscule footprint. Don't expect to throw in a massive graphics card or a high-end CPU with a big cooler. This case forces you to be very deliberate about component selection, prioritizing low-power parts and integrated graphics or very short, low-profile GPUs.
Volume (3.8L)
This tells you just how small the case is, like comparing a shoebox to a carry-on suitcase. A smaller volume means it takes up less space on your desk or in your bag, but also means less room for components and airflow.
CPU Cooler Height Limit (e.g., 40mm with 3.5” HDD)
This is critical because it dictates which CPU cooler you can even consider. Many stock coolers are taller than 40mm, so you'll likely need a specialized low-profile cooler. If your cooler is too tall, the side panel won't close.
Flex PSU Compatibility
This means you can't use a standard power supply. Flex PSUs are much smaller but often have louder fans and fewer wattage options. You'll need to factor in the cost and availability of a compatible power supply.
Alternatives
If this case is too restrictive, look for Mini-ITX cases around 7-10 liters that support SFX power supplies and CPU coolers up to 65-80mm, which will give you more component flexibility and better cooling potential.
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