in Win CK709 SFF Micro ATX Desktop case with 300W Power Supply (CK709.FF300TB3)
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AI Verdict
This 9L slim case is a cheap, no-nonsense shell with a surprisingly decent 300W power supply, perfect for basic home servers or low-power media center builds.
You get a compact 9L chassis and a 300W TFX power supply for around $110, which is a steal for basic office PCs or home servers. It strictly limits you to 45mm CPU coolers and half-height GPUs, making it useless for standard gaming builds.
If you need to install a full-height graphics card, step up to a 15L+ mini-tower case like the Cooler Master MasterBox NR400.
Regret Score™
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Pros
- Included 300W TFX power supply features an 8-pin CPU connector that easily handles 65W TDP processors
- Tool-free drive cage pops out via a switch and holds a slim optical drive, a 3.5-inch drive, and a 2.5-inch SSD
- Fits standard Micro-ATX motherboards inside a compact 9-liter footprint
- Included 80mm PWM fan provides adequate exhaust for low-power media center components
Cons
- Zero dust filtration on the intake vents means you will be blowing out dust bunnies every few months
- CPU cooler clearance is strictly capped at 45mm, forcing you to use ultra-low-profile coolers like the Noctua NH-L9a
- Only accepts low-profile, half-height PCIe expansion cards up to 251mm long
- Front panel lacks a USB-C port, offering just four standard USB-A ports
Dimension Scores
Included 300W TFX PSU easily powers 65W CPUs and basic peripherals without breaking a sweat.
The included 80mm PWM case fan and PSU fan are quiet at idle but get whiny under heavy load.
The steel frame is sturdy enough for a monitor to sit on, but the plastic front panel feels cheap.
There is virtually zero space behind the motherboard tray, forcing you to stuff excess PSU cables into the empty drive bays.
Best For
- Living room home theater PCs running 65W CPUs and integrated graphics
- Budget DIY NAS builds utilizing the 3.5-inch and 2.5-inch drive bays
- Basic office workstations where desk space is limited to a 9-liter footprint
Not Recommended For
- Gaming rigs requiring full-height dedicated graphics cards
- High-end processors that need beefy tower coolers taller than 45mm
Watch Out For
- No dust filters anywhere on the chassis — you need to buy aftermarket magnetic mesh if you have pets.
- The case does not include a blanking plate for the slim optical drive bay, leaving an ugly gap if you skip installing a CD/DVD drive.
- Documentation is completely missing from the box, leaving you to figure out the tool-less drive cage release mechanism yourself.
- The power and HDD activity LEDs share the same light pipe, which blends into a weird purple glow when both are active.
Full Specifications
| ASIN | B083TKSX3B |
| Brand | IN WIN |
| Color | Black |
| Series | CK709.FF300TB3 |
| Material | Aluminum, Plastic |
| Case Type | Slim-Desktop |
| Model Name | CK709.FF300TB3 |
| Item Weight | 8.48 pounds |
| Manufacturer | In Win |
| Cooling Method | Air |
| Item model number | CK709.FF300TB3 |
| Product Dimensions | 13.3 x 15.1 x 5.8 inches |
| Item Dimensions LxWxH | 13.3 x 15.1 x 5.8 inches |
| Number of USB 3.0 Ports | 1 |
| Motherboard Compatability | Micro ATX |
| Power Supply Mounting Type | Rear Mount |
| Recommended Uses For Product | Business |
What Buyers Say
The In Win CK709 is a classic function-over-form budget box that builders love for cheap home servers and office PCs. The included 300W TFX power supply is surprisingly reliable and includes an 8-pin CPU connector, which is rare at this price point. Cable management is practically non-existent, requiring you to shove excess wires into the optical drive bay. The lack of dust filters and a missing optical drive blanking plate are the most annoying cost-cutting measures.
“My daughter wanted this mini tower under her tv, so i did my best to cram everything in and even had to cut the metal to make things fit, no manual made it a headache.”
Common Praise
- Included 300W TFX power supply handles 65W TDP processors without random shutoffs
- Tool-less drive cage pops out easily via a single switch for quick hard drive swaps
- Top panel release clip makes opening the case much faster than unscrewing thumb screws
- Compact 9-liter footprint fits perfectly horizontally under a TV or vertically on a small desk
Common Complaints
- Zero dust filters on the intake vents leads to rapid dust buildup inside the case
- No instruction manual included in the box
- Leaves a gaping hole in the front panel if you do not install a slim optical drive
- Cable management space is non-existent, making the interior look like a rat's nest
Ownership Tips
- The power and HDD LEDs bleed into each other, creating a purple light instead of distinct indicators.
- You must buy a magnetic dust filter for the side vent if you place this on the floor.
- The 80mm exhaust fan starts to rattle after a few months of continuous 24/7 server use.
Frequently Asked Questions
Does this case fit a standard ATX power supply?
No. It only fits TFX form factor power supplies, but it comes with a 300W TFX unit pre-installed.
What is the maximum CPU cooler height?
You have exactly 45mm of clearance. Coolers like the Noctua NH-L9a or Cryorig C7 fit perfectly.
Can I fit a full-size graphics card in here?
No. The case only has four half-height expansion slots, so you are restricted to low-profile GPUs under 251mm in length.
Does the front panel have USB-C?
No. You only get two USB 3.0 Type-A ports, two USB 2.0 ports, and standard audio jacks.
How many hard drives can I install?
The removable cage holds one 3.5-inch drive and one 2.5-inch drive simultaneously, plus a slim optical drive.
Is the included power supply loud?
The 300W TFX unit has a temperature-controlled fan that stays practically silent under typical 65W CPU loads.
Buying Guide
When buying a Small Form Factor (SFF) case like this, you are trading expansion for desk space. You cannot use standard PC parts here — you must buy a low-profile CPU cooler under 45mm and half-height PCIe cards. The included power supply saves you money, but its 300W limit means you should stick to CPUs with a 65W TDP or lower and rely on integrated graphics.
9L Volume
Think of this as the physical footprint. At 9 liters, it is about the size of a thick textbook, meaning it fits easily on a shelf but severely limits the size of the parts you can put inside.
TFX Power Supply
This is a long, skinny power supply standard. It is much smaller than the blocky ATX power supplies found in normal gaming PCs, which makes replacing it more expensive if it ever dies.
Half-Height PCIe Slots
The metal slots on the back are shorter than normal. You can only install 'low-profile' expansion cards, meaning 99% of modern gaming graphics cards will physically not fit.
Alternatives
If you want to build a compact gaming PC with a full-size graphics card, search for 'Mini-ITX cases with SFX power supply support' and at least 15 liters of volume.
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