Itx Mini Case - K39 (Steel),1U Power Supply,Front I/O USB & Type-C Port,2 Handle can be Installed,Vented Panel - 2 Steel & 1 Acrylic Side Panels / 5L SFF Case
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AI Verdict
This 5.1L steel ITX case supports 170x170mm motherboards and FLEX-1U PSUs, ideal for experienced builders prioritizing extreme portability.
This case is a situational fit because its 5.1L size and 1.5mm steel construction are excellent for extreme portability, but it demands very specific component choices like FLEX-1U PSUs, GPUs under 185mm, and CPU coolers under 43mm. The requirement for a separate riser cable and BIOS configuration also narrows its appeal to experienced builders.
If these component restrictions are too tight, look for SFF cases around 7-10L that support SFX PSUs and CPU coolers up to 60-70mm.
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Pros
- Compact 5.1L form factor measures 7.7 x 4.7 x 8.7 inches, fitting into a backpack for portability.
- Constructed from 1.5mm thick steel for the frame and side panels, providing structural rigidity.
- Front I/O includes both USB 3.0 and Type-C ports via a single 19-pin motherboard header for high-speed data transfer.
- Includes two steel vented side panels and an additional 3mm acrylic vented side panel for customization and airflow.
- Supports GPUs up to 185mm in length and 40mm in height, expandable to 50mm with included standoffs.
- Designed for effective heat dissipation even without dedicated case fans.
Cons
- Does not include the required 19.5cm Dual Reverse Connectors GPU riser cable, which must be purchased separately.
- CPU cooler height is restricted to a maximum of 43mm.
- Installation is not recommended for novices and requires prior knowledge or video guides.
- Motherboard BIOS PCIE speed must be manually set to GEN3 for the riser cable to function correctly.
- Storage is limited to two 2.5-inch SSDs or HDDs.
Dimension Scores
The case is designed for effective heat dissipation even without case fans, supporting CPUs with coolers up to 43mm and GPUs up to 185mm.
While the case itself doesn't require fans, component choices like the CPU cooler and PSU fan will dictate the actual noise output, with some users noting CPU cooler noise.
Constructed from 1.5mm thick steel, providing a sturdy frame, though some users report potential for panel bending if not handled carefully.
The extremely compact 5.1L size inherently makes cable management challenging, with user feedback indicating a need to 'cram cables'.
Best For
- Portable gaming setups that need to fit into a backpack.
- Space-constrained desk environments requiring a minimal footprint PC.
- Experienced SFF PC builders comfortable with component selection and tight cable management.
- Users building a secondary or travel PC with specific low-profile component requirements.
Not Recommended For
- First-time PC builders due to complex installation and specific component requirements.
- Users requiring large, high-performance GPUs exceeding 185mm in length or 50mm in height.
- Builds needing tall CPU air coolers or liquid cooling solutions.
- Users needing multiple 3.5-inch hard drives for mass storage.
Watch Out For
- You need to buy a specific 19.5cm Dual Reverse Connectors GPU riser cable separately, which adds to the total cost.
- The motherboard's PCIE speed must be manually configured to GEN3 in the BIOS for the riser cable to work.
- CPU cooler height is strictly limited to 43mm, severely restricting cooler choices.
- Panel bending can occur if not handled carefully during assembly, as reported by some users.
- Cable management is challenging in the 5.1L volume, often requiring 'cramming cables' according to user experiences.
Full Specifications
| ASIN | B09BJZGKDD |
| Brand | SGPC |
| Color | WHITE |
| Series | K39 |
| Fan Size | 40 Millimeters |
| Material | Alloy Steel, Plastic |
| Case Type | Desktop |
| Model Name | K39 |
| Item Weight | 4.14 pounds |
| Manufacturer | SGPC |
| Cooling Method | Air, Fan |
| Item model number | K39 |
| Product Dimensions | 7.7 x 4.7 x 8.7 inches |
| Item Dimensions LxWxH | 7.7 x 4.7 x 8.7 inches |
| Number of USB 2.0 Ports | 1 |
| Number of USB 3.0 Ports | 1 |
| Motherboard Compatability | Mini ITX |
| Power Supply Mounting Type | Rear Mount |
| Recommended Uses For Product | Business |
What Buyers Say
Users frequently highlight the K39's incredibly small footprint, often comparing it to the size of a dictionary, making it a top choice for ultra-portable builds. The steel construction is generally appreciated for its rigidity, though some builders have noted that panels can bend if not handled with care during assembly. The case's ability to house a capable gaming system within its 5.1L volume, even with its thermal limitations, is a recurring positive. However, the necessity of a separate GPU riser cable and the strict CPU cooler height limit are consistent points of discussion.
“Man, this thing is TINY! It was a pain to build in, had to buy that stupid riser cable separately, but now I can literally throw my whole gaming PC in my backpack. Worth the headache if you know what you're doing.”
Common Praise
- Extremely small 5.1L size, making it highly portable and backpack-friendly.
- Ability to fit a desktop-class GPU (up to 185mm) in such a compact form factor.
- 1.5mm thick steel construction feels sturdy for its price point.
- Includes both steel and acrylic vented side panels for visual customization and airflow.
- Front I/O with both USB and Type-C ports is convenient for connectivity.
Common Complaints
- The GPU riser cable is not included and is a mandatory separate purchase.
- Very limited CPU cooler height clearance of 43mm restricts cooling options significantly.
- Installation is challenging and not suitable for inexperienced builders.
- Cable management is difficult due to the confined internal space.
- Motherboard BIOS settings need adjustment (PCIE GEN3) for the riser cable to function.
Ownership Tips
- The included handles are useful for carrying, with options for plastic or leather.
- The vented panels are crucial for thermal performance, especially without dedicated case fans.
- Finding a compatible FLEX-1U PSU can be more challenging and expensive than standard SFX units.
- Careful planning of component order is essential during assembly to avoid frustration.
- The Type-C port not being via Type-E means it might not support all advanced Type-C features or speeds as some motherboards expect.
Frequently Asked Questions
Does this case come with a GPU riser cable?
No, the case does not include a GPU riser cable. You need to purchase an additional 19.5cm Dual Reverse Connectors riser cable separately.
What is the maximum CPU cooler height supported?
The case supports air CPU coolers with a maximum height of 43mm.
Is this case suitable for a first-time PC builder?
No, it is not recommended for novices. The installation process is complex and requires prior experience or careful study of online video guides.
What kind of power supply does this case use?
The K39 is compatible with FLEX-1U power supplies, with dimensions up to 170x80x40mm.
What are the storage options inside the case?
The case supports up to two 2.5-inch SSDs or HDDs.
Can I install a full-size graphics card?
You can install a GPU up to 185mm in length and 40mm in height, or 50mm if you use the included standoffs to raise the side panel. This generally means compact or ITX-specific graphics cards.
Buying Guide
When looking at a mini ITX case like this, you're trading size for simplicity. You'll need to be precise with your component choices because there's very little room for error. Think about the specific CPU cooler height, GPU length, and power supply type you need, as these are the biggest constraints. Don't assume your existing parts will fit; measure everything twice.
Mini ITX compatibility
This means the case only fits the smallest standard motherboard size (170x170mm). It's like trying to fit a puzzle piece into a specific slot; larger motherboards simply won't go in, so ensure your motherboard is ITX.
FLEX-1U PSU
This refers to a specific, very small power supply form factor, typically used in servers. These PSUs are often louder and have fewer wattage options than more common SFX or ATX power supplies, and you'll need to buy one that fits the case's dimensions exactly.
GPU Riser Cable
In cases this small, the graphics card often sits parallel to the motherboard instead of directly plugging in. A riser cable acts as an extension cord for the PCIe slot, allowing this orientation. If it's not included, it's an extra cost and another component to source and install correctly.
Alternatives
If you need more flexibility for CPU coolers, larger GPUs, or easier cable management, search for SFF cases in the 7-10 liter range that support SFX power supplies and CPU coolers up to 60-70mm.
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