How much cooling and graphics card clearance does this case provide?

The CAPO X supports up to 13 x 120mm fans, radiator support up to 420mm on the product title and up to 360mm in the specifications, GPU clearance up to 420 mm, and CPU cooler height up to 180 mm.

Can this chassis support two separate systems at the same time, and what motherboard sizes does it fit?

Yes. The CAPO X is a dual system chassis that can house two independent systems simultaneously. It supports Micro ATX and Mini ITX motherboards.

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Main image of Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

Alt view image 2 of 9 - Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

Alt view image 3 of 9 - Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

Alt view image 4 of 9 - Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

Alt view image 5 of 9 - Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

Alt view image 6 of 9 - Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

Alt view image 7 of 9 - Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

Alt view image 8 of 9 - Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

Alt view image 9 of 9 - Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

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Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

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Delivering the ability for parallel operation from a single chassis the CAPO X can house two independent mATX systems simultaneously while minimally impacting the footprint left and opening extra desk space for the tools you need to get the job done.
Two systems means plenty of space for cooling and the CAPO X can support up to thirteen 120mm fans, up to 420mm/360mm radiators, and air coolers up to 180mm in height.
Extra cutouts allow support for mATX hidden connector motherboards such ASUS BTF, MSI PROJECT ZERO, and GIGABYTE PROJECT STEALTH to hide cables for a cleaner build.
Featuring two detachable clamp GPU braces that mount directly to the chassis frame and provide top and bottom support for each of the graphics cards.
Each system features is own I/O consisting of a power, reset, HD Audio, 2x USB 3.0 Type-A, and a USB 3.2 Gen2 Type-C port. I/O for the top system is located at the top of the chassis with the bottom system I/O located at the bottom front foot.

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

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Model
Brand	Thermaltake
Series	CAPO
Model	CA-12D-00S1WN-00

Details
Color	Black
Case Material	SPCC
Motherboard Compatibility	Micro ATX / Mini ITX
Side Panel	4mm Tempered Glass x 1

Expansion
Internal 3.5" Drive Bays	1
Internal 2.5" Drive Bays	3
Expansion Slots	10

Front Panel Ports
Front Ports	Upper System : USB 3.2 Gen 2 Type-C x 1, USB 3.0 x 2, HD Audio x 1 Lower System : USB 3.2 Gen 2 Type-C x 1, USB 3.0 x 2, HD Audio x 1v

Cooling System
Fan Options	Bottom - 1 x 120mm / Bottom - 1 x 140mm / Bottom - 2 x 120mm / Bottom - 2 x 140mm / Bottom - 3 x 120mm / Rear - 1 x 120mm / Rear - 1 x 140mm / Side - 1 x 120mm / Side - 1 x 140mm / Side - 2 x 120mm / Side - 2 x 140mm / Side - 3 x 120mm / Side - 3 x 140mm / Side - 4 x 120mm / Side - 4 x 140mm / Top - 1 x 120mm / Top - 1 x 140mm / Top - 2 x 120mm / Top - 2 x 140mm / Top - 3 x 120mm
Radiator Options	Rear - Up to 120mm / Rear - Up to 140mm / Side - Up to 120mm / Side - Up to 240mm / Side - Up to 360mm / Top - Up to 120mm / Top - Up to 140mm / Top - Up to 240mm / Top - Up to 280mm / Top - Up to 360mm

Dimensions & Weight
Max GPU Length	420 mm
Max CPU Cooler Height	180 mm
Max PSU Length	PSU length limitation: Upper System: A/160mm, B/180mm, C/250mm Lower System: D/180mm, E/250mm
Dimensions	691 x 305 x 448 mm (27.21 x 12.01 x 17.64 inch)
Weight	29lbs

Additional Information
First Listed on Newegg	August 21, 2026

Warranty & Returns

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Warranty

Limited Warranty period (parts): 3 years
Limited Warranty period (labor): 3 years
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Return for refund within: 30 days
Return for replacement within: 30 days
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Best Sellers

Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

Learn more about the Thermaltake CA-12D-00S1WN-00

Customer Reviews of the Thermaltake CA-12D-00S1WN-00

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: N82E16811133616

Best Sellers

Thermaltake CAPO X; Dual System Chassis; mATX/mITX; 4mm Curved TG; mATX Hidden Connector Support; 420mm Radiator Support; 420mm GPU Clearance; 250mm PSU Clearance; 180mm Air Cooler Clearance; Black

Learn more about the Thermaltake CA-12D-00S1WN-00

Customer Reviews of the Thermaltake CA-12D-00S1WN-00

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info