Ultra-Compact 5L ITX Case | Walnut Handle + PCIe 3.0 Riser Included | 1.5mm Steel | USB3.2/Type-C | Supports 185mm GPU | Fits ITX Motherboard/FLEX-1U PSU | for Gaming/HTPC Builds(K39BLK&SG01)
Want the best price and purchase timing?
Our AI advisor analyzes real-time pricing across all channels to find you the best deal.
AI Verdict
This 5L ITX case with 1.5mm steel and a PCIe 3.0 riser is for experienced SFF builders prioritizing extreme portability over easy assembly or high-TDP component cooling.
This case is a situational fit because its 5L volume and 185mm GPU limit cater to a very specific niche of ultra-compact builds. While it offers portability and a steel frame, the tight clearances and component restrictions mean it's not a universal solution for all ITX users.
If this case is too restrictive, look for ITX cases around 7-10L that offer more GPU length, CPU cooler height, or support for SFX PSUs for easier building and better thermal performance.
Regret Score™
Very High RiskLower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity
Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- Ultra-compact 5L design (7.7x4.7x8.7 inches) fits backpacks and desk corners, weighing 3.3 lbs.
- Durable 1.5mm steel construction with vented panels for airflow and a 3mm acrylic replacement panel for visibility.
- Includes a PCIe 3.0 riser cable, supporting GPUs up to 185mm in length and 43mm thick.
- Front I/O features USB3.2 and Type-C ports for high-speed transfers.
- Supports two 2.5" SSD/HDD bays with anti-vibration mounts for expandable storage.
- Designed for fanless natural convection cooling, aiming for quiet operation.
Cons
- GPU fan can scrape against the side panel, requiring washers or spacers for clearance.
- Cable management is difficult due to limited internal space and few routing cutouts.
- CPU cooler height is restricted to 55mm, limiting cooling options for high-TDP CPUs.
- Motherboard installation can be challenging, with tabs potentially blocking clearance.
- The included PCIe riser cable is Gen3, which may limit performance for newer GPUs.
- FLEX-1U PSUs are required, which can be noisy and difficult to find quiet alternatives for.
Dimension Scores
The 5L volume efficiently houses an ITX motherboard, FLEX-1U PSU, and a 185mm GPU, allowing for a capable gaming or HTPC system in an extremely small footprint.
While designed for natural convection, users report audible noise from FLEX-1U PSUs and small CPU coolers under load, making quiet operation challenging.
Constructed from 1.5mm steel, providing a sturdy frame, but some users note panels can warp and show minor imperfections.
Cable management is frequently cited as extremely difficult due to the minimal internal space and limited routing options.
Best For
- Portable gaming rigs for LAN parties or travel, fitting into a backpack.
- HTPC (Home Theater PC) builds where a small footprint is essential.
- Space-saving office setups where desk space is limited.
- Experienced small form factor (SFF) builders who enjoy intricate assembly challenges.
Not Recommended For
- First-time PC builders due to the complex assembly and tight clearances.
- Users with large hands, as internal space makes component installation difficult.
- High-performance builds with high-TDP CPUs or GPUs that require extensive cooling.
- Users expecting a silent PC under load, as FLEX-1U PSUs and small CPU coolers can be loud.
Watch Out For
- The GPU fan can scrape against the side panel if not spaced out, requiring less than 1mm washers to create clearance.
- Cable management is extremely difficult; users report 'snug as heck' conditions with few cutouts for routing.
- Installing the motherboard can be tricky, with case tabs potentially blocking clearance during placement.
- The PCIe riser cable must be connected to the motherboard before the motherboard is fully mounted, as there's no clearance afterward.
- CPU temperatures can reach 90°C with high-end CPUs like the Ryzen 7 5800X3D, even with optimized cooling.
- Panels can warp or bend if not handled carefully during assembly or transportation.
Full Specifications
| ASIN | B0G5YMRCCM |
| Brand | SGPC |
| Color | Black |
| Series | K39BLK&SG01 |
| Case Type | Slim-Desktop |
| Model Name | K39BLK&SG01 |
| Item Weight | 4.5 pounds |
| Manufacturer | SGPC |
| Item model number | K39 Black&PCIE 3.0 |
| Product Dimensions | 7.68 x 4.72 x 8.67 inches |
| Hard Disk Form Factor | 2.5 Inches |
| Item Dimensions LxWxH | 7.68 x 4.72 x 8.67 inches |
| Motherboard Compatability | Mini ITX |
| Power Supply Mounting Type | Bottom Mount |
| Recommended Uses For Product | Business, Gaming |
What Buyers Say
Users consistently highlight the SGPC K39's incredibly small size and portability as its main draw, making it possible to build a desktop-grade gaming PC that fits in a backpack. However, this compactness comes with significant trade-offs, primarily in the form of a challenging build process and thermal management. Many builders find themselves needing to use washers to prevent GPU fans from scraping side panels and meticulously planning cable routes due to the extremely tight interior. The case's reliance on FLEX-1U PSUs also means dealing with potentially loud fan noise, and high-TDP CPUs can quickly hit thermal limits, even with low-profile coolers.
“Man, this thing is tiny, like, ridiculously tiny, but getting everything to fit without the GPU fan grinding was a nightmare, and my CPU still runs hot, but hey, it fits in my backpack!”
Common Praise
- Extremely compact 5L size allows for desktop gaming in a tiny footprint.
- Included handles make it highly portable for travel or LAN events.
- 1.5mm steel construction feels sturdy for its price point.
- Ability to fit a powerful GPU (up to 185mm) despite the small volume.
- Comes with an extra 3mm acrylic side panel for hardware visibility.
Common Complaints
- GPU fan clearance is tight, often requiring washers to prevent scraping against the side panel.
- Cable management is very difficult due to the lack of space and routing cutouts.
- High CPU temperatures are common with powerful processors, even with low-profile coolers.
- FLEX-1U PSUs can be noisy under load, and quiet alternatives are scarce.
- The included PCIe riser is Gen3, which can be a bottleneck for newer GPUs.
- Panels can be prone to warping or bending during assembly.
Ownership Tips
- Expect to spend extra time on cable routing and component placement, possibly needing zip ties or custom length cables.
- You'll likely need to experiment with GPU fan spacing, possibly using small washers or rubber grommets to prevent contact with the side panel.
- Careful selection of a low-TDP CPU and an efficient low-profile cooler is crucial to manage temperatures.
- The FLEX-1U PSU might be the loudest component in your build; consider fan swaps if you're comfortable with modding.
- Be gentle with the side panels during removal and installation to avoid bending or warping the thin steel.
Frequently Asked Questions
What is the maximum GPU length and thickness supported?
The case supports GPUs up to 185mm in length and 43mm in thickness. Users have successfully fit cards like the RTX 4060, GTX 1660 Ti, and various ITX 3060 variants.
What type of power supply does this case use?
It requires a FLEX-1U power supply. These are typically smaller than SFX or ATX PSUs but can sometimes be louder.
Is this case difficult to build in?
Yes, many users report it's a challenging build, especially for those new to SFF PCs or with larger hands, primarily due to extremely tight clearances and difficult cable management.
Does the case come with a PCIe riser cable?
The product title states a PCIe 3.0 riser is included. However, some users have purchased versions without it, and the included riser is limited to PCIe 3.0 speeds.
How are the thermals in this case?
Thermals can be challenging, particularly for the CPU, with powerful processors like the Ryzen 7 5800X3D reaching 90°C. Careful component selection and cooling optimization are crucial.
Buying Guide
When buying an ultra-compact ITX case like this, you're trading ease of build and thermal headroom for extreme portability. You need to be meticulous about component selection, ensuring every part fits within the strict dimensions for GPU length (185mm), CPU cooler height (55mm), and PSU type (FLEX-1U). Don't expect to just throw parts in; plan your build like a puzzle, especially cable routing, to avoid frustration and thermal issues.
5L Portable Design
Supports 185mm GPU
Fits FLEX-1U PSU
PCIe 3.0 Riser Included
Alternatives
If this case's size constraints are too tight, look for ITX cases in the 7-10 liter range that support longer GPUs (200-250mm), taller CPU coolers (60-70mm), or SFX power supplies for easier building and better cooling performance.
You Might Also Like
Micro ATX PC Case | Mini Tower Computer case | Pre-Installed 120mm*1 RGB Fan | ITX Desktop Chassis for MATX/ITX | 240 RAD | 280mm GPU | 160mm CPU Cooler Height - White S6
$0-$49This MAQUY S6 is a budget Micro ATX case with a pre-installed 120mm RGB fan, supporting 280mm GPUs and 240mm top radiators for entry-level builds.
Micro ATX Case, Mini PC ITX Desktop Computer Case MATX Case Support ATX PSU/250mm GPU/135mm CPU Cooler/1x 3.5’’HDD or 2X 2.5’’SSD/USB 3.0 Port
$0-$49This is a compact 38.5x19.5x32.5cm Micro ATX case supporting 250mm GPUs and 135mm CPU coolers, designed for budget workstation builds.
Small PC Case, ITX Mini Computer Case with 360 Degree Ventilation, 10.5L Compact Design for ITX Motherboard, SFX Power Supply, 4 x 2.5 Inch SSDs
$50-$99This 10.5L acrylic ITX case supports SFX/SFX-L PSUs, ITX motherboards, and GPUs up to 210mm, designed for compact builds.
Micro ATX PC Case | Mini Tower Computer case Support Vertical GPU Mount | Pre-Installed 120mm*1 RGB Fan | ITX Desktop Chassis for MATX/ITX | 240 RAD | 320mm GPU | 165mm CPU Cooler Height-Black
$0-$49A budget Micro ATX case with a mesh front, tempered glass, and support for 320mm GPUs and 240mm AIOs, but only one pre-installed 120mm RGB fan.