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Thermalright Assassin X 120 Refined SE

ThermalrightCPU cooler

Assassin X 120 Refined SE

Released October 2021.2Maker product pagethermalright.com/wp-json/wp/v2/productRead 14 October 2026Public WordPress record of the maker's product page: created 2021-10-12, last modified 2023-09-01. The ARGB page was created 2021-10-12 as well. The White page was created 2023-04-07, which fits the White launch report of 2023-04-12. No launch article for the black model was found, so the month rests on the page record. Last checked 14 October 2026.

Cooler type
Air
Fans
1
Rated TDP
Not available
CPU sockets
AM5, AM4, LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA1150

32 of 54 fields known.

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At a glance

All specs

SourceCalculated

General

Series
Assassin X1Maker product pagethermalright.com/product/assassin-x-120-refined-seRead 14 October 2026Breadcrumb and category: Assassin X.
Model numbers
AX120-R-SE, AX120-R-SE-ARGB17Retailer pagereview.kakaku.com/review/K0001681244Read 14 October 2026Kakaku lists AX120-R-SE for this cooler and AX120-R-SE-ARGB for the ARGB edition (review.kakaku.com/review/K0001681245/). The maker publishes no part numbers. The names are the model codes retailers and Tom's Hardware use (AX120 R SE).
GTIN / EAN
814256003773, 814256013772, 814256003780, 814256015837, 81425600402214Retailer pagecomputerorbit.com/products/thermalright-assassin-x-120-refined-se-tower-air-cooler.jsRead 14 October 2026Shopify product feed, barcode 0814256003773 for AX120 REFINED SE (UPC 814256003773). The Computer Orbit feeds also give 0814256003780 for the ARGB edition (.../thermalright-assassin-x-120-refined-se-v2-tower-air-cooler.js), 0814256015837 for the White edition and 0814256004022 for the White ARGB edition. AWD-IT lists 814256013772 for the black model, another valid UPC, so both black UPCs are stored with no row pairing.15Retailer pageawd-it.co.uk/thermalright-assassin-x120-refined-se-single-tower-cpu-air-cooler-225w-tdp-black.htmlRead 14 October 2026EAN 814256013772 for the black model (ARGB: No). The page also gives a TDP of up to 225 W, which is a retailer figure and is not stored.
Announced
Not available
Status
Available12Retailer pageldlc.com/en/product/PB00582147.htmlRead 14 October 2026Listed with a price and a delivery estimate on the access date.
Predecessor
Not available
Successor
Not available
Launch price (US)
$19.98Reviewtomshardware.com/pc-components/air-cooling/thermalright-assassin-x-120-r-se-reviewRead 14 October 2026Spec table and features text: official MSRP $19.90 USD. The review of 2024-09-27 is later than the 2021 record date of the product page, so this is the MSRP the review states and not proven as the launch price. Amazon sold it for $16.59 to $18.90 then.
Launch price (EU)
Not available
Markets
Not available
Colours
Black, White5Maker product pagethermalright.com/product/assassin-x-120-refined-se-whiteRead 14 October 2026Page title: Assassin X 120 Refined SE WHITE. The black models are listed without a colour on the maker pages, and LDLC names them Black.
Cooler type
Air1Maker product pagethermalright.com/product/assassin-x-120-refined-seRead 14 October 2026
Air cooler layout
Single tower1Maker product pagethermalright.com/product/assassin-x-120-refined-seRead 14 October 2026Categories: Assassin X and Single Tower.
Rated TDP (claimed)
Not available
Base material
Copper8Reviewtomshardware.com/pc-components/air-cooling/thermalright-assassin-x-120-r-se-reviewRead 14 October 2026Spec table, Base: four 6mm direct touch copper heatpipes. No plating is stated. Heatsink material is aluminum. LDLC says pure copper base. Cybenetics lists block material aluminium, which looks like the fin stack.12Retailer pageldlc.com/en/product/PB00582147.htmlRead 14 October 2026Pure copper base, four 6 mm copper heat pipes.
Thermal paste
Included3Owner's manualdownload.thermalright.com/manuals/ASSASSINX120REFINEDSE.pdfRead 14 October 2026Parts list item J: Thermal Grease x1. The steps say to apply thermal grease on the CPU. Tom's Hardware names it TF4 paste in a tube.8Reviewtomshardware.com/pc-components/air-cooling/thermalright-assassin-x-120-r-se-reviewRead 14 October 2026The bundle includes a tube of Thermalright TF4 thermal paste.

Compatibility

CPU sockets
AM5, AM4, LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA11501Maker product pagethermalright.com/product/assassin-x-120-refined-seRead 14 October 2026Intel 115x/1200/1700/1851 and AMD AM4/AM5. 115x is written as LGA1150, LGA1151, LGA1155 and LGA1156.3Owner's manualdownload.thermalright.com/manuals/ASSASSINX120REFINEDSE.pdfRead 14 October 2026Installation sections for AMD AM4, Intel LGA115X/1200 and Intel LGA1700. The maker page adds LGA1851.
RAM height clearance
Not available
Offset mounting
Not available

Heatsink

Heat pipes
41Maker product pagethermalright.com/product/assassin-x-120-refined-seRead 14 October 2026Heat pipes: 6mm heatpipe x 4 units.
Heat pipe diameter
6mm1Maker product pagethermalright.com/product/assassin-x-120-refined-seRead 14 October 2026
Direct-contact heat pipes
Yes8Reviewtomshardware.com/pc-components/air-cooling/thermalright-assassin-x-120-r-se-reviewRead 14 October 2026Spec table and features text: four direct-touch copper heatpipes.

Liquid cooling

We could not find any of these 7 fields. Show them
Radiator size
Not available
Radiator dimensions
Not available
Radiator material
Not available
Tube length
Not available
Max pump speed
Not available
Pump power connector
Not available
VRM fan
Not available

Fans

Included fans
ModelSize (mm)FansMax speed (rpm)Airflow (CFM)Static pressure (mmH₂O)Noise (claimed) (dB(A))BearingConnector
TL-C12C12011,55066.171.5325.6Fluid dynamic (FDB)4-pin PWM
Source1Maker product pagethermalright.com/product/assassin-x-120-refined-seRead 14 October 2026TL-C12C FAN Spec: 120 x 120 x 25 mm, 1550 RPM +/-10% (MAX), 25.6 dBA, 66.17 CFM (MAX), 1.53 mm H2O (MAX), 4 pin PWM connector, S-FDB bearing, 0.20 A. The page does not state a fan count. The manual parts list shows one fan. S-FDB is stored as fluid dynamic, as on other Thermalright coolers. The page also has an ARGB Connector row (3 PIN 5V) for this fan. Tom's Hardware lists the TL-C12C with lighting none, and the White page (TL-C12CW) has no such row, so the row looks like a copy from the ARGB page and is not stored.8Reviewtomshardware.com/pc-components/air-cooling/thermalright-assassin-x-120-r-se-reviewRead 14 October 2026Fan table: Thermalright TL-C12C, 120 x 120 x 25 mm, up to 1550 RPM, 66.17 CFM, 1.53 mmH2O, S-FDB.
Fans
1

Display and lighting

RGB lighting
No8Reviewtomshardware.com/pc-components/air-cooling/thermalright-assassin-x-120-r-se-reviewRead 14 October 2026Fan table for the TL-C12C: Lighting None. LDLC says not luminous for the black model.12Retailer pageldlc.com/en/product/PB00582147.htmlRead 14 October 2026Lighting: not luminous.
Lighting standard
Not available
Built-in screen
None1Maker product pagethermalright.com/product/assassin-x-120-refined-seRead 14 October 2026The page lists a heatsink and a fan only. No screen is mentioned.
Screen size
Not available
Screen resolution
Not available
Software
Not available
Needs a USB header
No3Owner's manualdownload.thermalright.com/manuals/ASSASSINX120REFINEDSE.pdfRead 14 October 2026Fan wiring page: one 4-pin PWM fan header for CPU_FAN, plus a 3-pin 5V ARGB header for fans with ARGB lighting. No USB connection is shown.

Measured

Cybenetics THETA, AMD AM5
Silver10Measurementcybenetics.com/evaluations/coolers/110Read 14 October 2026Report TRCLR00110 is for the Assassin X 120 Refined SE ARGB, tested Nov 16 to 19, 2025. THETA Silver, Air, AM5, Ryzen 9 7900X, default mount, rated at 30 dB(A). The maker lists the same heatsink and the same fan figures for the plain model (TL-C12C against TL-C12C-S), so the ARGB report is used for it too. Evaluated before Revision 2.0 under Revision 1.8, and re-rated into the air class by Revision 2.2.
Cybenetics THETA, Intel LGA1851
Silver10Measurementcybenetics.com/evaluations/coolers/110Read 14 October 2026THETA Silver, Air, LGA1851, Core Ultra 9 285K, default mount, rated at 30 dB(A).
Overall performance at 30 dB(A), AM5 (measured)
9,66510Measurementcybenetics.com/evaluations/coolers/110Read 14 October 2026Overall Performance 9,665 at 30 dB(A) on a Ryzen 9 7900X (PBO enabled).
Overall performance at 30 dB(A), LGA1851 (measured)
12,88410Measurementcybenetics.com/evaluations/coolers/110Read 14 October 2026Overall Performance 12,884 at 30 dB(A) on a Core Ultra 9 285K (Intel default mode).
Noise at 100% fan setting (Cybenetics)
30dB(A)10Measurementcybenetics.com/evaluations/coolers/110Read 14 October 202630.0 dB(A) at the 100% fan setting (1505 rpm). The single fan cannot go above 30 dB(A). Hemi-anechoic chamber with a 6 dB(A) noise floor, Bruel & Kjaer 2270 G4 analyser with a 4955-A microphone, microphone 1 m from the cooler.
Thermal tests (measured)
Test CPULoadCPU power (W)Fan settingNoise (dB(A))CPU temperature (°C)
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled173.520 dB(A)2095.1
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled178.425 dB(A)2595.1
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled179.730 dB(A)3095.1
AMD Ryzen 9 7900XPrime95 Small FFTs, full CPU load, PBO enabled179.7100%3095.1
Intel Core Ultra 9 285KPrime95 Small FFTs, full CPU load, Intel default mode295.620 dB(A)20101.7
Intel Core Ultra 9 285KPrime95 Small FFTs, full CPU load, Intel default mode29725 dB(A)2599.1
Intel Core Ultra 9 285KPrime95 Small FFTs, full CPU load, Intel default mode296.430 dB(A)3096.7
Intel Core Ultra 9 285KPrime95 Small FFTs, full CPU load, Intel default mode296.4100%3096.7
Intel Core i7-14700KCPU only, no power limit, throttling at TJ Max, average package power the cooler held225Not available41.9Not available
Intel Core i7-14700KCPU only, no power limit, noise normalized, average package power the cooler held21338.9 dB(A)38.9Not available
Intel Core i7-14700K165 W CPU power limit with a 275 W GPU load165Not available41.983
Intel Core i7-14700K110 W CPU power limit with a 275 W GPU load110Not availableNot available70
Intel Core i7-14700KCinebench, 120 W CPU power limit, noise only120Not available38.9Not available
Source9Reviewtomshardware.com/pc-components/air-cooling/thermalright-assassin-x-120-r-se-review/2Read 14 October 2026Albert Thomas, review of 2024-09-27. Intel Core i7-14700K on an MSI Z790 Project Zero in an MSI Pano 100L PZ Black case with Iceberg Thermal IceGale Silent system fans, Thermalright LGA1700 contact frame fitted, the bundled TF4 paste, ambient held at 23 C, enclosed case. Noise is read with a sound meter that cannot read below 35 dBA, and its distance is not stated. Row 1: no power limit, the CPU hits TJ Max and the reviewer records the package power the cooler held. The spec table says about 225 W (Average Maximum TDP, our testing) and the text says the cooler trailed the Noctua NH-D15 by 5 W. The 41.9 dBA maximum volume is stated for this test and for the 165 W test. Row 2: noise normalized to 38.9 dBA, cooled an average of 213 W. Rows 3 and 4: CPU power limits of 165 W and 110 W with a 275 W GPU load, average CPU temperature 83 C and 70 C. Row 5: 120 W Cinebench run where only noise is reported (38.9 dBA). The charts give no other numbers, so no more rows are stored.10Measurementcybenetics.com/evaluations/coolers/110Read 14 October 2026Cybenetics Cooling Solutions Test Protocol, ARGB edition. Ambient held at 25 C plus or minus 0.5 C and 30% humidity in a climate chamber, open test bench (Cooler Master Test Bench for AM5, DimasTech Bench for LGA1851), Prime95 Small FFTs, averages of the last 4 minutes, Arctic MX-4 paste for all tests (protocol PDF), Default mount. CPU power is measured at the EPS connectors. The report does not publish a temperature above ambient. At 20 and 25 dB(A) the rows use the report's fixed noise levels, and the 100% row has the same values as the 30 dB(A) row because 100% gives 30.0 dB(A).11Measurementcybenetics.com/data/Cybenetics%20Cooling%20Solutions%20Test%20Protocol_en.pdfRead 14 October 2026Test Protocol Revision 2.2: Prime95 Small FFTs for at least 10 minutes per level, values averaged over the last 4 minutes, ambient 25 C plus or minus 0.5 C, humidity 30%, Arctic MX-4 for all tests, one mount per platform, AMD test system Ryzen 9 7900X with PBO enabled and Intel test system Core Ultra 9 285K in Intel default mode. The 2025 test of this cooler used the older Revision 1.8 procedure.

Dimensions and weight

Front and side, drawn to scale.

Dimensions
Width120Height148Depth71mm(4.7 × 5.8 × 2.8 in)12Retailer pageldlc.com/en/product/PB00582147.htmlRead 14 October 2026LDLC, fan included: height 148 mm, width 71 mm, depth 120 mm. LDLC's width is the 46 mm heatsink plus the 25 mm fan along the airflow, so depth_mm is 71 and width_mm is 120. Cybenetics measured 149 x 72 x 120 mm for the ARGB edition.
Heatsink dimensions
Width120Height148Depth46mm(4.7 × 5.8 × 1.8 in)1Maker product pagethermalright.com/product/assassin-x-120-refined-seRead 14 October 2026Heatsink Specifications: L120 mm x W46 mm x H148 mm. L runs across the fins and W along the airflow, so width 120, depth 46 and height 148. The fan is listed in its own table, so this is the heatsink without the fan.
Weight
750g(1.7 lb)12Retailer pageldlc.com/en/product/PB00582147.htmlRead 14 October 2026LDLC, Black model: weight 750 g. This equals the maker's heatsink 630 g plus fan 120 g. Cybenetics lists 604 g for the ARGB edition, which is lower than the maker's 630 g heatsink figure, so its weighing basis is unclear and it is not stored.
Heatsink weight
630g(1.4 lb)1Maker product pagethermalright.com/product/assassin-x-120-refined-seRead 14 October 2026Heatsink Specifications: Weight 630g. The TL-C12C fan is listed separately at 120 g. The PLUS page (two fans) states 640g (Without Fan), which confirms the figure is without fans.

In the box

In the box
Heatsink x1, Fan x1, LGA115x/1700 back plate x1, INTEL/AM4 bracket x2, Intel screw x4, AM4 screw x4, 115X / 1200 standoff x4, AM4 standoff x4, Thermal grease x1, Fan clip x2, 17XX standoff x43Owner's manualdownload.thermalright.com/manuals/ASSASSINX120REFINEDSE.pdfRead 14 October 2026One-page installation guide for the Assassin X 120 Refined SE series, parts list A to L, quantities as printed. FAN x1 is the single-fan model and (PLUS x2) is the two-fan model. Item I, Wire x1, is marked use for plus, so it is not stored. The ARGB, White and White ARGB guides show the same list.

Warranty

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Manufacturer warranty (source market)
Not available

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Variants

Each variant lists only what differs from the specs above.

Model numberGTINColoursRGB lightingLighting standard
AX120-R-SENot availableBlackNoNot available
AX120-R-SE-ARGB814256003780BlackYesARGB 5 V
Not available814256015837WhiteNoNot available
Not available814256004022WhiteYesARGB 5 V

Sources

We read 17 sources for this CPU cooler. The numbers match the markers in the sheet.

  1. Read 14 October 2026Backs 11 fields
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