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The Phanteks EX5 is a mid-tower PC case designed to separate component areas and direct fresh air toward the motherboard and graphics card. That is the intended airflow design—not proof that it cools better than a well-configured conventional case. The practical questions are whether its clearances suit your parts and which EX5 configuration includes the cooling hardware you need.
How the EX5’s airflow design works
Phanteks describes the EX5 as a compartmentalized case that gives key components dedicated areas. A pre-installed 120 mm fan behind the motherboard is intended to direct air toward the VRMs and memory while helping move graphics-card heat away from nearby components. Phanteks also identifies the CPU socket area and M.2 SSDs as targets of this focused airflow. These are the manufacturer’s stated airflow paths, not independently established temperature outcomes.
Phanteks describes the concept this way: “A unique compartmentalized design provides direct fresh air intake.” That statement explains the design rationale; it does not establish a measured advantage over other cases. Phanteks EX5 product page
Igor’s Lab characterizes “Air Curtain” as Phanteks’ marketing term and notes that results depend on installed components, fan speeds, ambient temperature, and installation conditions. The cooling effect of the layout should therefore be treated as a design claim rather than a guarantee for a particular PC.
#1 Best Overall
- MULTI-CHAMBER COOLING DESIGN: the compartmentalized design offers direct fresh air to each component directly
- BUILT-IN 6’’ LCD AIO COOLER: Fully integrated 360 AIO with 6’’ LCD & 120 chassis fan included, no additional fans needed
- MOTHERBOARD COMPATIBILITY: Compatible with ATX and Micro-ATX (mATX) form factors.
- MASSIVE GPU CLEARANCE: Accommodates graphics cards based on primary PCIe placement—up to 4.6 slots (Slot 1 entry ATX and mATX boards), 3.6 slots (Standard Slot 2 ATX), or 2.6 slots (Slot 3).
- INTERIOR FEATURES: Integrated ARGB lighting, 40mm cable clearance, Velcro cable ties and server-style GPU mounting bracket
Does the Phanteks EX5 cool a GPU better?
The available figures do not establish that it does. Igor’s Lab reports manufacturer-provided temperature ranges of 54–68 °C for processors and 57–76 °C for graphics cards during 20-minute gaming sessions. The year of the manufacturer’s data is not stated in that coverage, and the figures are not independent measurements.
Igor’s Lab says the supporting materials omit important test details, including ambient temperature, fan speeds, power limits, firmware, specific games, and a comparison case. It also notes inconsistent processor names in the materials. Without those details and a controlled comparison, the reported ranges cannot show whether the EX5 outperforms a conventional mesh case or predict temperatures in your build. Igor’s Lab technical coverage
Rank #2
- MULTI-CHAMBER COOLING DESIGN: the compartmentalized design offers direct fresh air to each component directly
- DESIGNED FOR AIO COOLERS: Supports 360 liquid coolers. The S25-120 chassis fan is included, no additional case fans needed
- MOTHERBOARD COMPATIBILITY: Compatible with ATX and Micro-ATX (mATX) form factors.
- MASSIVE GPU CLEARANCE: Accommodates graphics cards based on primary PCIe placement—up to 4.6 slots (Slot 1 entry ATX and mATX boards), 3.6 slots (Standard Slot 2 ATX), or 2.6 slots (Slot 3).
- INTERIOR FEATURES: Integrated ARGB lighting, 40mm cable clearance, Velcro cable ties and server-style GPU mounting bracket
TechTimes reported on September 10, 2026, that reviewers had not yet answered whether the EX5 cools better than a good mesh-front case with well-placed fans. That is a dated account of the review state at that time, not a claim about what reviews may exist now. The sources cited here do not establish an independent comparative thermal result. TechTimes’ September 10, 2026 report
EX5, EX5 Plus, and EX5 Max: what changes?
| Configuration | Included equipment | What to plan for |
|---|---|---|
| EX5 | Pre-installed 120 mm fan behind the motherboard | You choose the CPU cooling solution. The case supports a side-mounted radiator up to 360 mm. |
| EX5 Plus | Glacier One 360S25-SE AIO with concealed tubing | Confirm the included equipment and fit for the regional listing you are considering. |
| EX5 Max | Plus configuration and a 6-inch display | Confirm the exact configuration in the regional listing. |
Phanteks says the Plus and Max use a single-frame S25 ARGB fan assembly with one cable for the fan frame. Included equipment can vary by listing, so check the exact model and regional product page before buying. Phanteks EX5 release Igor’s Lab configuration coverage
Rank #3
- Seamless Glass Design: Create a picture-perfect PC with a seamless glass design that showcases your build
- Rear-Connect Mainboard Support: Support for the new Rear-Connect Mainboards for a zero-cable build with clean aesthetics
- Increased Chassis Width: Increased chassis width to support wider GPUs and PCIe cables for modern graphics cards
- Premium Build Quality: Premium build quality throughout the strong and reinforced outer frame for durability
- High Airflow Performance: High Airflow Performance with fine mesh, dust filter and 8x 120mm fan positions for optimal cooling
Check these clearances before choosing parts
For the EX5 model listed as PH-EX526_DBK01, Phanteks specifies a 449 × 234 × 474 mm (17.67 × 9.21 × 18.66 in) chassis. It supports ATX, Micro-ATX, and Mini-ITX motherboards. The limits below are more useful for checking a planned build than the case’s exterior dimensions alone.
| Part or feature | Published EX5 specification | Fit implication |
|---|---|---|
| Graphics-card length | Up to 358 mm | Check your card’s full length, including any protruding parts that affect installation. |
| Graphics-card thickness | Up to 93 mm (4.6 slots) from PCIe slot 1; 73 mm (3.6 slots) from slot 2; 53 mm (2.6 slots) from slot 3 | The available thickness depends on the position of the motherboard’s first PCIe slot. The 73 mm figure is not a universal limit. |
| CPU cooler height | Up to 72 mm | Compare this with the cooler’s stated height; many tower-style air coolers exceed the limit. |
| Side radiator | Up to 360 mm; technical coverage lists a maximum radiator envelope of 413 × 134 × 60 mm | Check the radiator and fan assembly dimensions, not just the radiator’s nominal size. |
| Power supply length | Up to 210 mm | Verify the PSU length and the clearance required for its cables. |
| Storage positions | One 3.5-inch HDD and one 2.5-inch SSD | Plan within those listed positions. |
| Front I/O | Two USB 3.0 ports, one USB-C 3.2 Gen 2×2 port, combined microphone/headphone jack, power and reset buttons | Check that your motherboard’s front-panel connections support the ports you want to use. |
Phanteks states that vertical GPU installation is not supported. A card that meets the length limit may still be too thick for its PCIe-slot position, so check both measurements against your motherboard and card. Phanteks EX5 specifications Igor’s Lab radiator-envelope details
Rank #4
- PANORAMIC TEMPERED GLASS: Seamless front and side glass panels offer a crystal-clear, unobstructed view of your entire build.
- 4x PRE-INSTALLED ARGB PWM FANS: Includes four 120mm fans right out of the box with smart temperature control and synced RGB lighting.
- DIRECT GPU COOLING: Three base-mounted fans pull fresh air from the bottom and direct it straight to your graphics card.
- 360mm RADIATOR & LARGE GPU SUPPORT: Fits a top-mounted 360mm liquid cooling radiator and easily accommodates massive triple-slot graphics cards.
- COMPACT ATX LAYOUT: Space-saving desktop footprint that still houses full-sized ATX power supplies and high-end hardware.
What to verify for your build
- Identify the exact EX5 variant. Confirm whether the listing is for the base EX5, Plus, or Max and verify its included cooling hardware and display.
- Measure the graphics card in two dimensions. Compare its length with the 358 mm maximum, then check thickness against the limit for your motherboard’s first PCIe slot position.
- Choose CPU cooling that fits. For an air cooler, check its height against the 72 mm limit. For a side radiator, verify its complete dimensions and installation requirements against the case’s available envelope.
- Check the remaining hardware. Confirm PSU length, storage needs, motherboard size, and whether the motherboard supports the front-panel ports you plan to use.
EX5 specifications and availability
Phanteks announced the EX5 as the first model family in its EX Series in a release dated September 8, 2026. The published specifications describe the PH-EX526_DBK01; confirm the precise model number, included components, stock, and regional configuration in the listing where you plan to buy. Phanteks’ September 8, 2026 release Official EX5 product page
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Best Value
- Unique see-through tempered glass chassis design
- Vertical cooling system with a floating chassis for bottom air intake
- Premium aluminum interior with integrated D-RGB Lighting
- Support for ATX rear-connect mainboards
- All fans and radiators are fully integrated in top and bottom for clean look
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
