Description
The Thermalright Peerless Assassin 120 MINI redefines small form factor cooling by packing dual-tower thermal dissipation into a highly compatible 135mm tall frame. Engineered with six 6mm copper heatpipes and a nickel-plated C1100 pure copper base, this heatsink ensures rapid heat transfer away from your CPU. It comes equipped with a single TL-D12B 120mm S-FDB bearing fan, striking an optimal balance between high airflow and whisper-quiet operation. Available in both matte black and clean white finishes, it seamlessly integrates into modern PC aesthetics while offering broad socket compatibility across Intel and AMD platforms.
This compact dual-tower cooler is engineered for five key target audiences:
- ITX and SFF PC Builders: Users requiring a low-profile cooler under 135mm that does not sacrifice dual-tower cooling performance.
- Silent PC Enthusiasts: Builders seeking low-noise operation, achieved via the 25.6 dBA Fluid Dynamic Bearing fan.
- PC Gamers and Overclockers: Users running demanding workloads on mid-to-high range CPUs who need sustained thermal throttling prevention.
- Aesthetic-Focused Custom Builders: Enthusiasts who value clean interior design, with options for fully blacked-out or all-white setups.
- Budget-Conscious Performance Seekers: Builders looking for premium thermal performance and a 2-year warranty without the premium liquid cooling price tag.
Technical Specifications:
- Heatsink Dimensions: 125 mm (L) x 110 mm (W) x 135 mm (H)
- Heatsink Weight: 700g
- Heatpipes: 6 x 6mm copper heatpipes
- Base Material: C1100 Pure Copper, Nickel-Plated
- Fan Model: TL-D12B
- Fan Dimensions: 120 mm x 120 mm x 25 mm
- Fan Weight: 120g
- Fan Speed: 1500 RPM ± 10% (Max)
- Noise Level: 25.6 dBA (Max)
- Airflow: 66.87 CFM (Max)
- Static Pressure: 1.53 mm H2O (Max)
- Rated Current: 0.20 A
- Connector: 4-Pin PWM
- Bearing Type: S-FDB (Fluid Dynamic Bearing)
- Intel Socket Compatibility: LGA 115X / 1200 / 1700 / 1851 / 2011 / 2066
- AMD Socket Compatibility: AM4 / AM5
- Warranty: 2 Years
In real-world testing, the Peerless Assassin 120 MINI delivers exceptional thermal efficiency. The six sintered copper heatpipes quickly draw heat up into the dual aluminum fin arrays, where the 120mm TL-D12B fan efficiently expels it. Operating at a maximum of 1500 RPM, the fan utilizes a Fluid Dynamic Bearing (S-FDB) to minimize mechanical friction, ensuring the system remains quiet even under full rendering or gaming loads. The offset asymmetric fin design also ensures excellent RAM clearance, preventing interference with high-profile memory modules on most Mini-ITX and Micro-ATX motherboards.
Compared to standard single-tower coolers, the Peerless Assassin 120 MINI offers significantly more surface area for heat dissipation, resulting in lower CPU temperatures under sustained workloads. While full-sized 160mm dual-tower coolers provide slightly better absolute thermal capacity, they cannot fit into compact Mini-ITX cases. The 120 MINI bridges this gap, offering near-equivalent cooling performance to its larger sibling, the standard Peerless Assassin 120, but with a 20mm height reduction that dramatically increases chassis compatibility.
Frequently Asked Questions:
- Will the Thermalright Peerless Assassin 120 MINI fit in my Mini-ITX case? Yes, with a height of only 135mm, it is designed to fit in most popular SFF and Mini-ITX cases that support medium-sized air coolers.
- Does this CPU cooler support the Intel LGA 1851 and AMD AM5 sockets? Yes, it features out-of-the-box compatibility with Intel LGA 1851, LGA 1700, and AMD AM5 sockets, as well as older generation platforms.
- Can I add a second fan to the Peerless Assassin 120 MINI? The cooler comes configured with a single central TL-D12B fan to maintain its compact footprint and RAM clearance, but additional fan clips can be used if your chassis clearance allows.
- What is the benefit of the S-FDB bearing in the fan? The Sony-Fluid Dynamic Bearing (S-FDB) reduces friction and vibration, which extends the lifespan of the fan and ensures quiet operation at a maximum noise level of 25.6 dBA.
- Does the cooler block the RAM slots on the motherboard? The heatsink is designed with clearance in mind; however, because it is a dual-tower design, we recommend checking the height of your RAM modules to ensure a perfect fit.
