Production COOJ SF3 8.9L A4-Structure Aluminum case

jaynamics

Average Stuffer
Jan 11, 2020
70
85
Cooj SF3 in Gray:
 
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Walderstorn

Average Stuffer
Apr 29, 2018
86
37
Guys, i have been out of this for a long time. "Unfortunately" i bought a GPU before i saw this and now maybe it's to big and i need your expertise to know if it is too big or if it fits.

The GPU in question is this one:


Dimensions

312 x 130 x 50 mm
12.3 x 5.1 x 2.0 inch


Is this with the baffle or without? I tried to measure and it seems that 312 is the lenght of the "plastic" top.
 

Falc7

Minimal Tinkerer
New User
Mar 9, 2025
3
0
Any chance you could make "Aluminum Alloy Mesh" side panels for the SF3, like you do for the Sparrow (pic here)? I would love a design with slightly stronger side panels
 

coughlanio

Typical Gaijin
Aug 22, 2017
20
26
Guys, i have been out of this for a long time. "Unfortunately" i bought a GPU before i saw this and now maybe it's to big and i need your expertise to know if it is too big or if it fits.

The GPU in question is this one:


Dimensions

312 x 130 x 50 mm
12.3 x 5.1 x 2.0 inch


Is this with the baffle or without? I tried to measure and it seems that 312 is the lenght of the "plastic" top.

The maximum length without the bracket/baffle is 307mm, so don't think it will fit. I don't own the case, but I assume there isn't 5mm of slack but maybe someone else or @COOJ can confirm.
 
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zioNNN

Cable Smoosher
Dec 2, 2025
8
7
Received mine yesterday and already brought in the insides of my previous case, the Zalman M2 Mini, which shares the same layout but its bigger and only holds a single 80mm on top.

Mine came in perfect condition, i purchased it in Black and i'm in love with the stealth-y look.
 
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jaynamics

Average Stuffer
Jan 11, 2020
70
85
Received mine yesterday and already brought in the insides of my previous case, the Zalman M2 Mini, which shares the same layout but its bigger and only holds a single 80mm on top.

Mine came in perfect condition, i purchased it in Black and i'm in love with the stealth-y look.

Btw, i can't figure out how to upload images on this site, in case someone wanted to see real pictures of it in black.
Pictures?
 

zioNNN

Cable Smoosher
Dec 2, 2025
8
7
Pictures?
Here you have some pictures of the build, sadly i didn't take any before starting:



Added some LED strips:




Overall, i think they scored a masterpiece with the SF3, I can't think of any competitor for this case in the sub-9L category ITX, the closest I can think of would be the IQUNIX XZ-1 which costs more than double, while the S300 features much worse build quality and design and doesnt offer the dual top 120mm slim fans, and the rest of the Terras, Ncases, Formd T1s are either much more expensive, or bigger, or both.

The price is the cherry on the top, being just $99 for the basic version. (Sure, you may have to add the riser, but in my case I already had one from the Zalman).

My only grip with the SF3 is that the spine/middle tray seems to be held in place by a notch/indent, to me it doesnt feel "secured" or sturdy enough, the motherboard itself has a little wiggle of about 1-2mm if you try move it around.

Everything else, feels increible to me, hats off for COOJ.

Feel free to ask if you have any specific question.
 
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phil6891

Cable Smoosher
Sep 3, 2024
9
2
Here you have some pictures of the build, sadly i didn't take any before starting:



Added some LED strips:



Overall, i think they nailed a masterpiece with the SF3, I can't think of any competitor for this case for air cooling builds below $200.

Measuring 8.9L with standard ITX components, two top, well vented 12015 fans, 2.5 slots GPU, easy to build in (in comparison with many others sandwich style cases), good side mesh panels, superb build quality and under $100... (sure, you may have to add the riser, but in my case I already had one).

My only grip with the SF3 is that the spine/middle tray seems to be in place by a notch/indent, to me it doesnt feel "secured" or sturdy enough, the motherboard itself has a little wiggle of about 1-2mm if you move it.

Everything else, is top notch. Most of the competition have worse disadvantages than this one while costing the double if not more.

Feel free to ask if you have any specific question.
Wholeheartedly agree on the spine, albeit my case arrived damaged in shipping, the spine wasn't set in place when it arrived. It also leaves marks against the inside of the front of the case when it's set back in place, I just hope the replacement isn't like this.

https://postimg.cc/PvxsTn5q

Riveting it to the front would have been better, but nit picks aside, it's a gorgeous case! I just wish it was packaged better like the Z-13 too.
 
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zioNNN

Cable Smoosher
Dec 2, 2025
8
7
Wholeheartedly agree on the spine, albeit my case arrived damaged in shipping, the spine wasn't set in place when it arrived. It also leaves marks against the inside of the front of the case when it's set back in place, I just hope the replacement isn't like this.

https://postimg.cc/PvxsTn5q

Riveting it to the front would have been better, but nit picks aside, it's a gorgeous case! I just wish it was packaged better like the Z-13 too.
Let's hope they improve on the spine if there's ever a v2 of the case, but I get they have to cut corners somewhere to charge $99 for what could easily be $200 from any other manufacturer.

How was the replacement process, did they accept with ease? The behaviour in these situations is what set apart some companies from others.
 
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phil6891

Cable Smoosher
Sep 3, 2024
9
2
Let's hope they improve on the spine if there's ever a v2 of the case, but I get they have to cut corners somewhere to charge $99 for what could easily be $200 from any other manufacturer.

How was the replacement process, did they accept with ease? The behaviour in these situations is what set apart some companies from others.

I'll be honest, their replies were spotty at best and not very professional.

My case arrived on the 2nd and it took a week of chasing back and forth to get a UPS dispatch notification yesterday.

They wanted this raising first via a UPS claims reference number (a process that can take up to 8 to 15 business days according to UPS). In any other situation I wouldn't have minded this, but given this is a Christmas present I wanted a quick turnaround, plus the shipping includes insurance too apparently.

So in summary, some of the best cases in the industry let down by poor aftersales.
 

zioNNN

Cable Smoosher
Dec 2, 2025
8
7
I'll be honest, their replies were spotty at best and not very professional.

My case arrived on the 2nd and it took a week of chasing back and forth to get a UPS dispatch notification yesterday.

They wanted this raising first via a UPS claims reference number (a process that can take up to 8 to 15 business days according to UPS). In any other situation I wouldn't have minded this, but given this is a Christmas present I wanted a quick turnaround, plus the shipping includes insurance too apparently.

So in summary, some of the best cases in the industry let down by poor aftersales.
Huge L from their part. I understand that its probably UPS fault, but in the end its their image that is at risk, and specially in the first days of a product launch when the people are craving early user reviews like ours.
 
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