DeepCool ASSASSIN IV CPU Air Cooler - 7 Heat Pipes, 140mm PWM
DeepCool
DeepCool ASSASSIN IV CPU Air Cooler - 7 Heat Pipes, 140mm PWM
The DeepCool ASSASSIN IV is an air cooler built for system builders who want strong thermal performance without the noise. A simple mode switch lets you choose between quiet operation for everyday builds and maximum cooling power for demanding workloads, while the design stays out of the way of tall RAM modules.
Why this product
Two-mode operation for noise or cooling
Switch between Quiet Mode (22.6 dB) for near-silent operation and Performance Mode (29.3 dB) for full 280W cooling capacity. The three-phase motor adapts fan speed accordingly without requiring software.
Seven heat pipes with dual fin towers
Heat disperses through two fin-array towers via 7mm heat pipes, delivering efficient transfer across a wide range of CPU loads.
Clears high-profile RAM on most platforms
The relocatable 120mm fan design provides unobstructed clearance for tall RGB modules on Intel LGA1700, LGA1200, LGA115X and AMD AM4/AM5. Intel LGA20XX sockets have 63mm clearance.
6-year limited warranty
DeepCool backs the cooler with six years of coverage, reflecting confidence in the design.
Includes industrial-grade thermal paste
The bundled DM9 thermal paste meets rigorous industrial application standards, eliminating a separate purchase.
- Socket compatibilityIntel LGA2066/2011-v3/2011/1851/1700/1200/1155/1151/1150; AMD AM5/AM4
- Heat pipes7 × Ø6 mm
- Max TDP280W (Performance Mode)
- Noise (Quiet Mode)≤22.6 dB(A)
- Noise (Performance Mode)≤29.3 dB(A)
- Warranty6 years limited
- SKUDEE-849
- EAN6933412728092
- Intel LGA2066, LGA2011-v3, LGA2011, LGA1851, LGA1700, LGA1200, LGA1155, LGA1151, LGA1150
- AMD AM5 and AM4
- 4-pin PWM fan connector (12 VDC)
- Intel LGA20XX systems have only 63mm RAM clearance; other platforms support tall RGB modules without obstruction
Best for
- Builders wanting silent operation during light workloads or office use
- High-end systems with premium RAM and strict thermal requirements
- Intel and AMD builds that need broad socket compatibility without custom hardware
- Users who want thermal and acoustic modes in one cooler, no BIOS tuning required
Trade-offs
- Extreme overclocking on the highest-end CPUs: 280W TDP covers fast stock and moderate all-core boosts but is not designed for sustained sub-zero or exotic cooling scenarios
- Compact cases with height restrictions: The heatsink tower is 160 mm tall, requiring sufficient vertical clearance
- Builds where lowest absolute noise is the sole priority: Even in Quiet Mode, 22.6 dB is audible; passive or larger tower coolers may be quieter in idle states
THE "AIR" APPARENT The newest addition to the ASSASSIN series claims the air-cooling crown in both cooling capacity and ultra-quiet operation.
BEAUTY IN SIMPLICITY The elegant design of the ASSASSIN IV is not just visually pleasing; it also leads to optimal air flow and maximum compatibility.
IN SILENT OR EXTREME MODE, THE ASSASSIN IV REIGNS SUPREME With a simple slide of a switch, the ASSASSIN IV can morph from a whisper-quiet cooler when low noise is of the utmost importance to an unrestricted cooling powerhouse when peak performance is all that matters.
LET IT SHINE! The ASSASSIN IV's case is clean, sleek, and helps channel air through the fin towers, while the relocatable 120mm fan provides unobstructed clearance for high-profile RGB RAM.
RAM Clearance Intel LGA1700/1200/115X: Unobstructed Intel LGA20XX: 63mm AMD: AM4/AM5: Unobstructed
BE COOL, BE CALM A key factor in the ASSASSIN IV's extremely silent operation is the use of three-phase, six-stage fan motors with low voltage and power consumption. DeepCool is so confident in our new design that the ASSASSIN IV comes with 6 years of limited warranty coverage!
EXCEPTIONAL BY DESIGN Featuring seven heat pipes that deliver improved heat transfer through two fin-array heat sink towers for high performance efficiency. The included DM9 thermal paste meets the rigorous standards used in industrial applications.
STREAMLINED INSTALLATION Installing larger air coolers can be difficult and is a prime reason the hardware and installation was designed to be extremely user friendly. Even the magnetic top fan cover was crafted with ease of installation in mind.
General
| Brand | DeepCool |
|---|---|
| Colour | Black |
| Cooler dimensions | 144 × 147 × 164 mm (L × W × H) |
| Heatsink dimensions | 140 × 110 × 160 mm (L × W × H) |
| Weight | 1575 g |
Fan
| Fan size (140mm) | 140 × 140 × 25 mm (L × W × H) |
|---|---|
| Fan size (120mm) | 120 × 120 × 25 mm (L × W × H) |
| Speed range (Quiet Mode) | 500–1350 RPM ±10% |
| Speed range (Performance Mode) | 500–1700 RPM ±10% |
| Airflow (140mm, Performance Mode) | 79.1 CFM |
| Airflow (120mm, Performance Mode) | 58.06 CFM |
| Static pressure (140mm, Performance Mode) | 2.44 mmH₂O |
| Static pressure (120mm, Performance Mode) | 2.1 mmH₂O |
| Bearing type | Fluid Dynamic Bearing (FDB) |
| Connector | 4-pin PWM |
| Voltage | 12 VDC |
Performance & Acoustics
| Max TDP | 280W (Performance Mode) |
|---|---|
| Noise level (Quiet Mode) | ≤22.6 dB(A) |
| Noise level (Performance Mode) | ≤29.3 dB(A) |
Compatibility
| CPU sockets | Intel LGA2066, LGA2011-v3, LGA2011, LGA1851, LGA1700, LGA1200, LGA1155, LGA1151, LGA1150; AMD AM5, AM4 |
|---|---|
| RAM clearance (Intel LGA1700/1200/115X) | Unobstructed |
| RAM clearance (Intel LGA20XX) | 63 mm |
| RAM clearance (AMD AM4/AM5) | Unobstructed |
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.