Thermaltake CTE E660 MX
A research-driven look at Thermaltake's dual-chamber enthusiast mid-tower, built around extensive 420 mm liquid-cooling support, three-way GPU installation, hidden-connector motherboard compatibility and exceptionally flexible fan placement.
Quick Product Overview
Dual-Chamber Design
The CTE E660 MX separates major components into a dual-chamber architecture designed to provide substantial cooling flexibility while keeping the main hardware presentation clean.
Serious Liquid Cooling
Thermaltake provides 420 mm radiator support at the front, rear and motherboard side, giving builders several locations for high-capacity AIO or custom-loop cooling.
Three-Way GPU Installation
The graphics card can be installed in three orientations, and Thermaltake includes a 400 mm riser cable for alternative GPU mounting configurations.
Key Specifications
| Exact Model | Thermaltake CTE E660 MX |
|---|---|
| Black Model P/N | CA-1Y3-00M1WN-01 |
| Case Type | Dual-Chamber Mid-Tower |
| Dimensions | 558.5 × 270 × 513 mm (H × W × D) |
| Weight | 15.85 kg / 34.94 lb |
| Material | SPCC steel |
| Side Panels | 2 × 4 mm tempered glass |
| Motherboards | Mini-ITX, Micro-ATX, ATX and E-ATX up to 12 × 10.5 inches |
| Hidden-Connector Boards | Supported — including compatible ASUS BTF and MSI Project Zero designs |
| CPU Cooler Clearance | 166 mm |
| GPU Clearance | 443.8 mm without radiator / 415 mm with radiator |
| PSU Clearance | 220 mm |
| Expansion Slots | 7 |
| Included Fans | None |
| Maximum Fan Capacity | Up to 14 × 120 mm or 12 × 140 mm |
| Included GPU Riser Cable | 400 mm |
Fan Support
| Front | Up to 3 × 120 mm or 3 × 140 mm |
|---|---|
| Top | Up to 2 × 120 mm |
| Right / Motherboard Side | Up to 3 × 120 mm or 3 × 140 mm |
| Rear | Up to 3 × 120 mm or 3 × 140 mm |
| Bottom | Up to 3 × 120 mm or 3 × 140 mm |
AIO Radiator Support
| Front | 120 / 140 / 240 / 280 / 360 / 420 mm |
|---|---|
| Top | 120 / 240 mm |
| Right / Motherboard Side | 120 / 140 / 240 / 280 / 360 / 420 mm |
| Rear | 120 / 140 / 240 / 280 / 360 / 420 mm |
Custom Liquid Cooling
Liquid cooling is one of the strongest reasons to consider the CTE E660 MX. Thermaltake officially supports large 360 mm and 420 mm radiators at the front, rear and motherboard side, providing far more radiator-placement freedom than a conventional mid-tower.
For custom-loop builders, Thermaltake also documents DIY bottom radiator support through 420 mm. That opens the possibility of extremely high radiator capacity, although pump, reservoir, tubing, GPU and radiator clearances must be planned as one complete system.
CTE Cooling Architecture
Thermaltake's CTE concept is designed around moving major heat-generating components closer to available cool-air paths. The E660 MX expands that idea with multiple large fan and radiator locations surrounding the motherboard and graphics-card chamber.
Rather than forcing builders into one standard front-intake/top-exhaust layout, the chassis provides front, motherboard-side, rear and bottom cooling locations that can be configured around the needs of the hardware.
Three-Way GPU Installation
Traditional Position
The GPU can be installed conventionally for a familiar layout and straightforward PCIe connection.
Vertical Position
Builders can rotate the GPU to place the cooler and graphics-card design prominently behind the tempered-glass panel.
Floating Position
Thermaltake's alternative floating orientation creates a more unusual display configuration and makes use of the included 400 mm riser cable.
Interchangeable Front Panels
The CTE E660 MX includes both tempered-glass and perforated front-panel options. Builders can therefore choose between a more showcase-oriented appearance or greater direct front airflow.
This is particularly useful because the case supports three 120 mm or three 140 mm front fans and radiators through 420 mm. A high-heat build can prioritize the perforated panel, while a display-focused configuration can use the glass alternative.
Hardware Compatibility
443.8 mm GPU Clearance
Without a radiator occupying the relevant clearance area, the chassis supports graphics cards up to 443.8 mm long.
415 mm With Radiator
Even with a radiator installed in the clearance path, Thermaltake specifies up to 415 mm of graphics-card length.
E-ATX Motherboards
Motherboard compatibility extends through E-ATX boards measuring up to 12 × 10.5 inches.
Hidden-Connector Motherboard Support
Thermaltake designed the CTE E660 MX to support compatible hidden-connector motherboards, including ASUS BTF and MSI Project Zero designs.
Moving major power and I/O connections behind the motherboard helps reduce visible wiring in the main chamber, which is particularly useful in a dual-tempered-glass showcase chassis.
Works Best With
Custom Liquid Cooling
Multiple 420 mm radiator positions and a dual-chamber layout make the E660 MX particularly suitable for ambitious custom-loop systems.
Large Performance GPUs
Up to 443.8 mm of graphics-card clearance and three mounting orientations give builders considerable flexibility with oversized GPUs.
E-ATX & Hidden-Connector Builds
Support for E-ATX and compatible hidden-connector boards makes the chassis appropriate for large, cleanly routed enthusiast systems.
Storage & Front I/O
Flexible Drive Layout
Storage can be configured for up to three 3.5-inch hard drives, or combinations including up to two 2.5-inch SSDs depending on the selected drive arrangement.
USB-C Connectivity
Top-panel connectivity includes two USB 3.0 Type-A ports, one USB 3.2 Gen 2 Type-C port and HD Audio.
Extensive Dust Filtering
Thermaltake provides removable filters at the top, front, bottom, rear and right side to protect the case's numerous intake locations.
Build Planning
The CTE E660 MX provides far more configuration choices than a conventional mid-tower, but that flexibility also means builders should plan the cooling system before installing components.
Radiator location affects GPU clearance, GPU orientation affects presentation and airflow, and custom-loop configurations may use several different radiator locations. The chassis rewards careful planning more than a simple one-layout build.
Owner Satisfaction & What Builders Are Saying
Recurring Positive Feedback
- The unusual three-way GPU mounting system is a major attraction for showcase builders.
- Owners appreciate the large amount of cooling hardware the chassis can accommodate.
- 420 mm radiator compatibility provides substantial freedom for high-end AIO and custom-loop systems.
- The interchangeable glass and perforated front panels allow appearance and airflow to be prioritized differently.
- Large GPU clearance makes modern high-end graphics cards easier to accommodate.
- The dual-chamber layout helps separate hardware and cable-management areas.
- Hidden-connector motherboard compatibility is useful for extremely clean showcase builds.
Recurring Concerns
- The case is physically large and heavy for a product classified as a mid-tower.
- No fans are included, so a complete high-airflow configuration requires additional purchases.
- The large number of cooling and GPU-layout options can make build planning more complicated.
- CPU air-cooler clearance is limited to 166 mm despite the case's substantial overall size.
- Builders using a radiator in the GPU clearance path reduce maximum GPU length from 443.8 mm to 415 mm.
- The chassis may provide more cooling capacity and configuration complexity than a mainstream system actually needs.
Strengths & Limitations
Strengths
- 420 mm radiator support at front, rear and motherboard side
- DIY bottom custom-loop radiator support through 420 mm
- Up to 14 × 120 mm fans
- Up to 12 × 140 mm fans
- 443.8 mm maximum GPU clearance without radiator
- 415 mm GPU clearance with radiator
- Three-way GPU installation
- 400 mm riser cable included
- E-ATX motherboard support
- ASUS BTF and MSI Project Zero compatibility
- Interchangeable glass and perforated front panels
- Dual-chamber architecture
- Extensive removable dust filtration
Limitations
- No case fans included
- 166 mm CPU-cooler clearance
- Large 558.5 mm chassis height
- 15.85 kg empty weight
- Cooling configuration requires more planning than a basic tower
- Maximum GPU clearance depends on radiator placement
- Only 240 mm radiator support at the top
- May be excessive for straightforward mainstream builds
Upgrade & Build Considerations
The CTE E660 MX has substantial long-term cooling flexibility. A builder can begin with a conventional air-cooled or AIO system and later move toward multiple large radiators or a custom liquid-cooling loop without necessarily replacing the chassis.
GPU upgrades are similarly flexible. The 443.8 mm maximum card length is generous, while the included riser cable and three GPU orientations give builders alternatives if presentation or cooling requirements change.
The main limitation for future air-cooling upgrades is the 166 mm CPU cooler height. Builders considering very tall tower coolers should verify dimensions before purchase.
Alternatives to Consider
HYTE X50
A more design-focused alternative with a curved exterior, large GPU support and front/side 360 mm liquid cooling.
Corsair FRAME 4000D RS
A more conventional modular mid-tower offering extensive radiator placement and reverse-connector motherboard compatibility.
HAVN BF 360
An airflow-oriented alternative for builders who prioritize large factory fans and straightforward high-performance cooling.
Who Is It Best For?
The Thermaltake CTE E660 MX is best suited to enthusiast builders who actually intend to use its unusually broad configuration options. Custom liquid-cooling systems, large GPUs, 420 mm AIOs, E-ATX motherboards and showcase-oriented GPU mounting are all natural fits.
It is less compelling for a basic air-cooled system that needs only a few fans and one graphics card in a traditional orientation. In that scenario, a smaller and simpler airflow chassis may use space more efficiently.
Rockin Box Tech Research Summary
The Thermaltake CTE E660 MX is one of the most cooling-flexible cases in this Rockin Box Tech comparison group. Its defining advantage is not one specific radiator location but the number of different ways an enthusiast can configure the cooling system.
Thermaltake officially supports 420 mm radiators at the front, rear and motherboard side, while custom-loop builders can also use a DIY bottom radiator installation through 420 mm. Total fan capacity reaches fourteen 120 mm or twelve 140 mm fans.
Hardware compatibility is similarly broad. E-ATX motherboards are supported, including compatible hidden-connector designs, while graphics cards can measure up to 443.8 mm without a radiator or 415 mm when a radiator occupies the relevant clearance area.
The three-way GPU mounting system further separates the E660 MX from more traditional towers. Thermaltake includes the 400 mm riser cable needed for alternative orientations rather than making it an immediate additional purchase.
The trade-offs are size, weight, complexity and the absence of included fans. The 166 mm CPU-cooler limit is also relatively modest given the physical size of the chassis.
For a serious liquid-cooling or highly customized enthusiast build, however, the CTE E660 MX provides an unusually broad foundation that can accommodate both large hardware and substantial future cooling upgrades.
Research Sources
Primary specifications: Thermaltake official CTE E660 MX product specifications and current manufacturer documentation.
Cooling configuration: Thermaltake official fan, AIO radiator and custom liquid-cooling compatibility tables.
Owner/community research: Builder experiences are considered for recurring satisfaction points, configuration observations and practical concerns while remaining separate from controlled technical evidence.
Research Disclosure
Each review is research-driven and based on manufacturer specifications, technical documentation and reputable published sources.
Products are not necessarily physically tested by Rockin Box Tech.
Cooling performance, temperatures, acoustics and overall build experience can vary according to installed components, fan quantity and speed, radiator configuration, graphics-card size and orientation, CPU cooler, power supply, cable routing, room temperature, dust accumulation and operating conditions.
The CTE E660 MX ships without case fans, so thermal and acoustic performance is particularly dependent on the cooling hardware selected by the builder.
Owner and community feedback represents individual user experiences and should not be interpreted as controlled laboratory testing.
Product specifications, revisions, accessories, pricing and availability may change after this review is published.