Skip to content

Thermalright · Air · 155 mm tall

Thermalright Royal Knight 120 SE

1 fan · 25.6 dBA

Performance
70%
Perf / price
108
Acoustics
74
Amazon
$28
$28
Available on Amazon Updated Aug 30, 2026 Prime FBA
Performance70.0%
Performance / price108.5
Acoustics74.2
$28 on Amazon Cooler table Compare this cooler

Check this cooler in a buildSelect a CPU and case first so socket, height, and radiator support can be evaluated. Start with the CPU

Written analysis

Thermalright Royal Knight 120 SE at a glance

The Thermalright Royal Knight 120 SE is a Air cooler listed as 155 mm tall. It is listed with 1 120 mm fan.

Review-derived relative cooling performance is 70.0%. Recorded noise is 25.6 dBA, for an acoustics score of 74.2. Airflow is listed at 66.2 CFM. Warranty is 5 years.

Best fit: Compact or value builds where clearance, noise, and price outweigh peak thermal headroom.

Fitment and sockets

Tower height is 155 mm — check case cooler clearance before buying. Socket compatibility includes LGA 1700, LGA 1151, LGA 1155, LGA 1156, LGA 1200, LGA 1851, AM4, AM5. CPU block / cold plate: Copper.

Current value

At $28, performance / price is 108.5. Compare nearby coolers of the same type below; quieter acoustics and fitment can outweigh a small score gap.

Cooler data

Full specifications

Cooling type, fitment, sockets, fans, acoustics, features, and value in one technical sheet.

General

Manufacturer
Thermalright
Cooler
Thermalright Royal Knight 120 SE
Warranty
5 years
Launch price
Amazon price
$28
Amazon availability
Available
Price updated
Aug 30, 2026

Cooling type & fit

Type
Air
Size class
155 mm tall
Height
155 mm
Cooler dimensions
122 x 114 x 155 mm

Value

Amazon price
$28
Relative performance
70.0%
Performance / price
108.5
Acoustics
74.2

Sockets & block

Socket compatibility
LGA 1700, LGA 1151, LGA 1155, LGA 1156, LGA 1200, LGA 1851, AM4, AM5
CPU block
Copper

Fans & acoustics

Fan size
120 mm
Fan count
1
Fan speed
1500 rpm
Noise
25.6 dBA
Airflow
66.2 CFM
Acoustics score
74.2

Features

RGB lighting
No
Thermal paste included
No
Display
0
Color

Amazon

Price history

Nearby performance

Similar coolers

Coolers close to Thermalright Royal Knight 120 SE on relative performance. Open the cooler table to sort, filter, and compare side by side.

Compare these in the cooler table

Discussion

Comments on Thermalright Royal Knight 120 SE

No comments yet.

Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

[CPU Cooling] The CPU cooler is a double-tower dual-fan cooler, which adopts an anodic frosted top cover + fully electroplated 6 heat pipes and Seiko micro-carved reflow soldering copper bottom process, combined with a 12cm high-performance blackened fan, which can give full play to the heat dissipation effect of the CPU cooler stably.

[Doesn't block RAM] CPU cooler leaves space for RAM, no matter how high the RAM is, it doesn't block the light output of the RAM, and there is no need to raise the front fan, thanks to the matching fans, the middle fan of the cooler is a standard 12cm cpu fan, and the front fan is a thinner 12cm fan, the thinner pc fan has a high RPM of 1800RPM, and the high airflow makes it easier to dissipate heat.

[Twin Tower Radiator Specifications] Model: Royal Knight 120 SE, Size: 122*114*155mm(4.8*4.49*6.1inch), Heat Dissipation Material: Aluminum + Copper, All Aluminum Fins of the Main Tower, which can bring the maximum heat dissipation area, and the S-FDB bearings attached to the dual fans have a long service life to ensure the service life of air cooling and heat dissipation.

[Dual fans with temperature control] The dual fans attached to the heat dissipation are TL-C12B V2 and TL-C12015B, with fan parameters of 120 * 120 * 25mm/120 * 120 * 15mm, speed of 1500RPM+10%/1800RPM+10%, air pressure of 1.53/1.24MM H2O, air volume of 66.17/59CFM, operating noise<25.6/26.1DB (A), fan interface: 4PIN PWM, voltage: DC 12V; High performance fans combined with efficient cooling of the main tower provide you with high-quality cooling products with care.

[Wide compatibility] The cpu cooling is compatible with AMD and Intel platform slots: AM4/AM5; Intel LGA1851/1700/1150/1151/1155/1156/1200, the cooler comes with corresponding mounting grommets for easy installation, which can be installed according to the instruction manual or the installation video (Note: For AMD installation, you need to use the original motherboard backplane for installation)