Thermaltake Core V21 SPCC Micro ATX, Mini ITX Cube Gaming Computer Case Chassis, Small Form Factor Builds, 200mm Front Fan Pre-installed, CA-1D5-00S1WN-00 Black
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AI Verdict
The Thermaltake Core V21 is a massive, highly modular micro-ATX cube case built for airflow enthusiasts who want to lay their motherboard flat and don't mind a large desk footprint.
It offers incredible cooling clearance with room for 185mm CPU coolers and 350mm GPUs, but its wide, boxy footprint dominates a desk. If you want a horizontal motherboard to stop GPU sag and plan to pack it with radiators, it's perfect. If you just want a small micro-ATX case, this is way too bulky.
If you want a truly compact cube, step down to the Thermaltake Core V1, which is strictly Mini-ITX but takes up half the space.
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Pros
- Fits massive 185mm tall CPU air coolers and 350mm long graphics cards
- Motherboard tray can be oriented horizontally to prevent GPU sag
- Includes a massive 200mm front intake fan right out of the box
- Side, top, and bottom panels are exactly the same size and interchangeable
- Fits up to five radiators if you use the included mounting rails
Cons
- Takes up significantly more desk space than a standard mid-tower
- Side window is easily-scratched acrylic, not tempered glass
- Power supply mounting bracket is notoriously fiddly to install
- Only three cable tie-down points in the entire chassis
- Included 200mm fan is 3-pin and stuck running at a fixed 800 RPM
Dimension Scores
Massive 200mm fan and fully mesh panels provide excellent thermal performance.
Open mesh design and lack of sound dampening means you hear every component spinning.
Sturdy steel frame, but the acrylic window and flimsy magnetic filters show its budget price.
Only three tie-down points exist, relying entirely on hiding a rat's nest in the bottom chamber.
Best For
- Builders who want a horizontal motherboard layout to eliminate heavy GPU sag
- Custom water cooling loops using multiple thick radiators
- Home server builds utilizing the three 3.5-inch and three 2.5-inch drive bays
Not Recommended For
- Minimalist desk setups needing a compact, space-saving footprint
- First-time builders who rely on guided cable management channels
Watch Out For
- The side window is cheap acrylic, not glass — wiping it with a dry paper towel leaves permanent micro-scratches.
- The magnetic dust filters severely choke the 200mm front fan; removing them drops CPU and GPU temps by up to 6°C.
- Cable management is practically non-existent; you just have to stuff the excess wire into the bottom chamber under the motherboard tray.
- The included 200mm fan uses a 3-pin connector, meaning you can't easily set a custom PWM fan curve in your BIOS.
Full Specifications
| ASIN | B00PDDMN6S |
| Brand | Thermaltake |
| Color | Black |
| Series | CA-1D5-00S1WN-00 |
| Fan Size | 200 Millimeters |
| Language | English |
| Material | Alloy Steel |
| Batteries | 1 Lithium Ion batteries required. |
| Case Type | Tower |
| Model Name | CA-1D5-00S1WN-00 |
| Item Weight | 4.4 pounds |
| Manufacturer | Thermaltake USA Direct |
| Cooling Method | Fan |
| Flash Memory Size | 8 GB |
| Item model number | CA-1D5-00S1WN-00 |
| Product Dimensions | 16.7 x 12.6 x 13.25 inches |
| Audio-out Ports (#) | 4 |
| Computer Memory Type | PC1066 |
| Number of Processors | 1 |
| Item Dimensions LxWxH | 16.7 x 12.6 x 13.25 inches |
| Number of USB 3.0 Ports | 2 |
| Motherboard Compatability | Micro ATX |
| Power Supply Mounting Type | Rear Mount |
| Recommended Uses For Product | Gaming |
| Standing screen display size | 75 |
| Is Discontinued By Manufacturer | No |
What Buyers Say
The Core V21 is much larger in person than photos suggest, taking up a massive chunk of desk real estate. The horizontal motherboard layout completely eliminates GPU sag for heavy modern cards, which is a huge win. The modularity is fantastic—you can swap the window, mesh, and solid panels to any side you want. Cable management is universally panned since there are almost no tie-down points, forcing you to just shove cables into the basement. The acrylic window is also a frequent sore spot, as it scratches if you even look at it wrong.
“I love the horizontal layout and airflow, but cable management is a joke and the acrylic window scratched the first time I wiped it with a microfiber cloth.”
Common Praise
- Horizontal motherboard tray completely eliminates graphics card sag
- Fits massive 185mm tall air coolers like the Noctua NH-D15 with room to spare
- All four side/top/bottom panels are exactly the same size and interchangeable
- Front I/O panel can be moved to the left, right, top, or bottom edges
- Tons of room for custom water cooling radiators on the included top rails
Common Complaints
- Takes up a massive amount of horizontal desk space
- Acrylic side panel scratches incredibly easily during routine dusting
- Only three cable tie-down loops in the entire chassis
- Included 200mm fan is 3-pin and runs at a fixed, audible 800 RPM for many users
- Power supply mounting bracket is frustrating and poorly explained in the manual
Ownership Tips
- The fine mesh dust filters clog quickly and need vacuuming every two weeks to maintain airflow.
- The 200mm front fan starts to develop a slight bearing rattle after a year of continuous use.
- You will eventually want to remove the magnetic dust filters entirely, as they restrict intake air enough to raise temps by 5°C.
- If you lose the proprietary PSU mounting bracket, you cannot mount a power supply securely.
Frequently Asked Questions
Can I fit a full-sized ATX motherboard in this case?
No. The Core V21 only supports Micro-ATX and Mini-ITX motherboards. You need a standard mid-tower or the larger Core X series for an ATX board.
Is the side window tempered glass?
No, it is a clear acrylic panel. It scratches very easily. Only clean it with a clean microfiber cloth.
Does the case come with a rear exhaust fan?
No, it only includes the single 200mm front intake fan. You need to buy a separate 120mm or 140mm fan for the rear exhaust.
Can I mount my power supply in any orientation?
Yes, but the mounting bracket is notoriously frustrating to align. Install the small reinforcement bracket between the drive bays and the PSU early in the build.
How many hard drives can I install?
You can fit up to three 3.5-inch drives in the side cages and three 2.5-inch SSDs on the side panel mounts.
Buying Guide
You are buying a cube case, which means it is short but extremely wide. Measure your desk space first, because this takes up the footprint of a small microwave. The main draw here is the horizontal motherboard layout, which stops heavy graphics cards from sagging and tearing your PCIe slot. Because it's an older case design from 2014, you won't get modern luxuries like tempered glass, USB-C ports, or built-in cable routing channels.
Micro-ATX Form Factor
The size of the motherboard it holds. It's a square board that's smaller than a standard ATX, but larger than the tiny Mini-ITX.
185mm CPU Cooler Clearance
The maximum height for a processor heatsink. 185mm means you can fit literally any giant air cooler on the market, like a Noctua NH-D15.
SPCC Steel
The material the frame is made of. It's standard cold-rolled steel—heavy and durable, but not premium aluminum.
Alternatives
If you want a smaller footprint, look for a vertical Mini-ITX tower. If you want modern features like tempered glass and USB-C, search for a dual-chamber micro-ATX case.
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