ARCTIC Liquid Freezer III Pro 240mm AIO CPU Cooler
ARCTIC
ARCTIC Liquid Freezer III Pro 240mm AIO CPU Cooler
The ARCTIC Liquid Freezer III Pro 240mm AIO CPU Cooler combines a larger 38 mm radiator with ARCTIC's P12 Pro fans to deliver efficient heat dissipation across Intel and AMD platforms. It suits builders seeking reliable liquid cooling with integrated cable management and straightforward installation, solving the need for sustained performance under demanding workloads without excessive noise.
Why this product
38 mm radiator holds more liquid
The thicker core than conventional 27 mm radiators reduces heat buildup and handles temperature spikes more efficiently.
P12 Pro fans: quieter and more powerful
Higher performance at low speeds (especially quiet operation) with maximum speed reserves for high-load cooling, compared to the standard P12.
Native offset mounting for Intel and AMD
The cold plate center shifts toward the CPU hotspot for more efficient heat transfer on LGA1700, LGA1851, AM5, and AM4 sockets.
Integrated VRM fan and cable management
A PWM-controlled fan cools the voltage converters while fan cables run inside the hose sheathing, leaving only one visible cable to the motherboard.
Reinforced EPDM tubing with braided sheathing
Durable tubing designed to resist wear and maintain integrity over the 6-year warranty period.
- Radiator size240 mm (277 × 120 × 38 mm)
- Fan airflow77 CFM at rated speed
- Noise level30 dBA
- Cold plateCopper with micro skived fins
- Thermal interfaceMX-6 (0.8 g)
- Intel/AMD compatibleLGA1851, LGA1700, AM5, AM4
- Warranty6 years
- SKUARC-3517
- EAN4895265000225
- Intel LGA1700 and LGA1851 sockets with native offset mounting.
- AMD AM5 and AM4 sockets with native offset mounting.
- 120 mm radiator width fits standard tower cases with front or top radiator mounting.
- Some motherboards with oversized M.2 SSD coolers in the M.2_1 slot may conflict; ARCTIC supplies a compatible M.2 cooler free of charge for affected boards.
Best for
- Builders prioritising quiet operation at idle and low load while maintaining full cooling power under sustained gaming or workstation use.
- Intel and AMD builders who want offset mounting tuned to each platform's hotspot, rather than a generic square layout.
- System builders valuing cable cleanliness, as integrated fan cables eliminate visible runs and simplify routing.
- Users in warm environments up to 40 °C, where the larger radiator's liquid volume and surface area provide additional thermal buffer.
Trade-offs
- Compact builds requiring minimal radiator depth; the 38 mm core is thicker than slim-profile 27 mm radiators.
- Budget-conscious buyers seeking the lowest entry cost to liquid cooling; all-in-one AIOs carry higher cost than air coolers.
- Users outside the 0–40 °C operating ambient range; cooling is not specified for colder or hotter environments.
The P12 Pro unleashes its full potential: quieter and more powerful at low speeds, with greater performance reserves under load—for maximum cooling without compromise.
The 38 mm radiator not only enhances heat dissipation but also holds more liquid than conventional 27 mm radiators. This reduces heat buildup and ensures more efficient handling of temperature spikes.
Reinforced EPDM tubing with braided sheathing for increased durability. Pre-installed, pre-wired fans, straightforward mounting, and an animated online manual.
Simply apply in a cross pattern—the water pump's cold plate distributes the paste evenly.
Fan cables integrated into the sleeving simplify installation and minimize cable clutter.
Some motherboards may be incompatible with the Liquid Freezer III Pro due to oversized SSD coolers in the M.2_1 slot. For affected motherboards, we provide a compatible M.2 cooler free of charge.
Fan
| Brand | ARCTIC |
|---|---|
| Radiator fan model | P12 Pro |
| Radiator fan speed | 600–3000 RPM |
| Radiator fan airflow | 77 CFM |
| Radiator noise level | 30 dBA |
| VRM fan speed | 400–2500 rpm (PWM-controlled) |
Performance
| Pump speed | 800–2800 rpm (PWM controlled) |
|---|---|
| Cold plate material | Copper, micro skived fins |
| Radiator material | Aluminium |
| Radiator thickness | 38 mm |
| Thermal interface material | MX-6 (0.8 g) |
Acoustics & power
| Pump current & voltage | 0.35 A | 12 V DC |
|---|---|
| VRM fan current & voltage | 0.05 A | 12 V DC |
| Operating ambient temperature | 0–40 °C |
Physical
| Radiator dimensions | 277 (L) × 120 (W) × 38 (H) mm |
|---|---|
| Tube length | 450 mm |
| Tube diameter | Outer: 12.4 mm, Inner: 6.0 mm |
| Total weight | 1675 g |
| Intel socket compatibility | LGA1851, LGA1700 |
| AMD socket compatibility | AM5, AM4 |
| Part number | ACFRE00178A |
| Warranty | 6 years |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.