CPU coolers / Compare

Cooler Master Hyper 212 Halo vs Thermalright Peerless Assassin 120 SE

A

Product A: Cooler Master

Hyper 212 Halo

30 of 54 known

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B

Product B: Thermalright

Peerless Assassin 120 SE

25 of 54 known

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Every value links to where we found it.

Only differences

ACooler Master Hyper 212 Halo

BThermalright Peerless Assassin 120 SE

General

8 of 12 differ

Series

Hyper1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026

Peerless Assassin1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Category: Peerless Assassin.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

RR-S4KK-20PA-R1, RR-S4WW-20PA-R11Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026Black: Product Number RR-S4KK-20PA-R1. The White page gives RR-S4WW-20PA-R1.2Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-whiteRead 15 October 2026White: Product Number RR-S4WW-20PA-R1.3Maker spec sheet (PDF)farnell.com/datasheets/3972778.pdfRead 15 October 2026Product Number RR-S4KK-20PA-R1.

PA120 SE 17003Retailer pagewatercoolinguk.co.uk/product/thermalright-peerless-assassin-120-se-cpu-cooler-120mmRead 16 October 2026MPN: PA120 SE 1700. This is the retailer's manufacturer part number, not printed on Thermalright's page.

GTIN / EAN

4719512132685, 884102105005, 47195121340923Maker spec sheet (PDF)farnell.com/datasheets/3972778.pdfRead 15 October 2026Maker product sheet for the Hyper 212 Halo Black, hosted by Farnell: EAN code 4719512132685 and UPC code 884102105005.6Retailer pageshop.sumanet.cz/rr-s4ww-20pa-r1-cooler-master-chladic-hyper-212-halo-white-120mm-argb-lga1700-bilaRead 15 October 2026Manufacturer type RR-S4WW-20PA-R1, GTIN (EAN) 4719512134092. The White UPC was not confirmed and is not stored.

08142560037593Retailer pagewatercoolinguk.co.uk/product/thermalright-peerless-assassin-120-se-cpu-cooler-120mmRead 16 October 2026EAN 0814256003759. Paradigit lists the same number as 814256003759 under Product number manufacturer.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

January 20238Press articlepausehardware.com/ces-2023-le-cooler-master-hyper-212-se-moderniseRead 15 October 2026CES 2023 article, last updated 2023-01-13. The exact announcement day is not stated.

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Status

Available1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026The page has a Buy Now button. Several retailers list the White edition as out of stock or discontinued.

Available3Retailer pagewatercoolinguk.co.uk/product/thermalright-peerless-assassin-120-se-cpu-cooler-120mmRead 16 October 202650 in stock on the access date at 33.11 GBP excluding VAT. Thermalright's page is live.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

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SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

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Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

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$364Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026Spec table, supplied by Thermalright: MSRP $36 USD. The review is dated September 2022, so this is the US MSRP at that time and may not be the launch price. Tax is not stated.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

€44.9910Press articlehardwareluxx.de/index.php/news/hardware/kuehlung/61010-cooler-master-hyper-212-halo-neuauflage-mit-halo%C2%B2-l%C3%BCfter.htmlRead 15 October 2026Article of 2023-05-14: both Hyper 212 Halo variants launch at an UVP of 44.99 euro. German article. VAT is not stated, and a German UVP normally includes it. ComputerBase (May 2023) reports about 45 euro. No USD launch price from the maker or a launch article was found.

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MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

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ColoursiThe maker's own colour names

Black, White1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026Black on this page, with a Black and White colour selector. The White page has an identical spec table.2Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-whiteRead 15 October 2026Exterior Color White.

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Cooler typeiAir is a heatsink with fans that sits on the CPU. AIO liquid is a sealed all-in-one liquid cooler with a pump block, tubes and a radiator.

Air1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026Cooler Type: Air Cooler.

Air1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026

Air cooler layoutiAir coolers only. Top-flow covers low-profile coolers whose fan blows down onto the board.

Single tower10Press articlehardwareluxx.de/index.php/news/hardware/kuehlung/61010-cooler-master-hyper-212-halo-neuauflage-mit-halo%C2%B2-l%C3%BCfter.htmlRead 15 October 2026Both variants are single-tower coolers, 15.4 cm high.11Reviewaphnetworks.com/reviews/cooler-master-hyper-212-halo-white/2Read 15 October 2026Single stack 120 mm tower with 50 aluminium fins.

Dual tower1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Listed under Dual Towers in the Peerless Assassin series.

Rated TDP (claimed)iThe heat load the maker says the cooler handles. Makers do not share one test method, so this is not a measured result. A maker's maximum heat dissipation power counts. Check the maker's CPU compatibility page too.

210W4Maker product pagecoolermaster.com/en-global/cpu-compatibility.htmlRead 15 October 2026Air Coolers table: TDP 210 for the Hyper 212 Halo Black and the Hyper 212 Halo White. The table has no footnote for these rows. Some retailers print 155 W or 180 W, and PCGamesN advises 150 W CPUs or less. The maker figure is stored.

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Base materialiThe surface that touches the CPU: the heatsink base or the AIO cold plate. Plating counts, so nickel-plated copper is not copper. Direct-touch heat pipes are the contact surface, so they count as copper unless plating is stated. The direct-contact heat pipes field records the design.

Copper11Reviewaphnetworks.com/reviews/cooler-master-hyper-212-halo-white/2Read 15 October 2026The heat pipes at the base are copper and are not nickel plated. The maker's spec table states no base material.

Nickel-plated copper1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Copper Base: C1100 Pure copper nickel plated.

Thermal pasteiPre-applied means paste is already on the base or cold plate. Included means a separate tube or syringe in the box.

Included11Reviewaphnetworks.com/reviews/cooler-master-hyper-212-halo-white/2Read 15 October 2026The cooler comes with a small tube of thermal paste.13Reviewalktech.co/articles/review-cooler-master-hyper-212-halo-black-cpu-air-coolerRead 15 October 2026A tube of Cooler Master MasterGel Pro thermal paste is included.

Included2Owner's manualdownload.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdfRead 16 October 2026Parts list item J: Thermal Grease x1. The steps say to apply thermal grease on the CPU. Tom's Hardware names a medium-sized tube of thermal paste.4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026A medium-sized tube of thermal paste is in the package.

Compatibility

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CPU socketsiSockets the maker lists as supported in its spec table, compatibility list or guide, written as cpu_socket writes them, e.g. AM5 or LGA1851. List each socket on its own, so LGA115x becomes LGA1150, LGA1151, LGA1155 and LGA1156. When the maker names the sockets of such a family, list only the ones it names. A socket that needs a separately sold or requested mounting kit is left out. A new socket that the maker lists with no extra kit counts. LGA2011-v3 and 2011(V3) are written LGA2011-3. Threadripper sockets use AMD's names, so TR4 is written sTR4 and TR5 is written sTR5. sTRX4 and sWRX8 are sockets of their own.

AM5, AM4, LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA11501Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026CPU Socket: Intel LGA 1851 / 1700 / 1200 / 1151 / 1150 / 1155 / 1156 and AMD AM5 / AM4. The older product sheet lists no LGA1851.

AM5, AM4, LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA11501Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Intel 115X/1200/1700/1851 and AMD AM4/AM5. 115X is written as LGA1150, LGA1151, LGA1155 and LGA1156. The older installation guide covers AM4, 115X/1200 and 1700 only. The page names AM5 and LGA1851.

RAM height clearanceiAir coolers only. The tallest memory module that fits under the cooler with all included fans in their standard position. When the maker gives different values per socket, store the lowest and name the others in the source note. A heatsink that does not reach over the memory slots has no height limit, so the field is left out and the maker's statement goes in the source note.

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Offset mountingiThe included mount can shift the base or cold plate off the socket centre, for example toward the AM5 hotspot. An asymmetric heatsink on a centred base does not count.

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Heatsink

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Heat pipesiAir coolers only. Number of heat pipes. A U-shaped pipe with two ends in the fins counts as one. A T-shaped pipe with three ends, such as Cooler Master's 3DHP, also counts as one. The maker's count wins over a review or Cybenetics count.

41Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026Heatpipes 4. Spec table: 4 Heat Pipes / Aluminum Fins.

61Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Heat pipes: 6mm heatpipe x 6 units.

Heat pipe diameteriAir coolers only. Outer diameter, such as 6 or 8.

6mm8Press articlepausehardware.com/ces-2023-le-cooler-master-hyper-212-se-moderniseRead 15 October 2026Four copper heat pipes of 6 mm thickness (written d'epaisseur).9Press articlegeektopia.es/es/technology/2023/04/17/noticias/cooler-master-presenta-la-refrigeracion-hyper-212-halo.htmlRead 15 October 2026Aluminium heatsink crossed by four direct-contact copper heat pipes of 6 mm diameter.

6mm1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026

Direct-contact heat pipesiAir coolers only. The heat pipes touch the CPU directly instead of sitting in a solid base plate.

Yes8Press articlepausehardware.com/ces-2023-le-cooler-master-hyper-212-se-moderniseRead 15 October 2026The four heat pipes are in direct contact with the processor.9Press articlegeektopia.es/es/technology/2023/04/17/noticias/cooler-master-presenta-la-refrigeracion-hyper-212-halo.htmlRead 15 October 2026Cuatro caloductos de cobre de contacto directo.10Press articlehardwareluxx.de/index.php/news/hardware/kuehlung/61010-cooler-master-hyper-212-halo-neuauflage-mit-halo%C2%B2-l%C3%BCfter.htmlRead 15 October 2026The four heat pipes have direct contact with the CPU.11Reviewaphnetworks.com/reviews/cooler-master-hyper-212-halo-white/2Read 15 October 2026The base uses a direct contact heatpipe design. All four heat pipes are soldered to the base.13Reviewalktech.co/articles/review-cooler-master-hyper-212-halo-black-cpu-air-coolerRead 15 October 2026Four direct-contact heat pipes, painted black, touch the CPU heat spreader.

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Liquid cooling

None of 7 known

Radiator sizeiAIO coolers only. The nominal size class from the fan positions, such as 240, 280, 360 or 420.

Not available

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Radiator dimensionsiRadiator without fans. Length runs along the row of fans. Width runs across it. Thickness is the depth the airflow passes through, such as 27 or 38.

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Radiator material

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Tube lengthiLength of each tube between the pump block and the radiator, as published. When the two tubes differ, the shorter is stored and the other goes in the source note.

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Max pump speediHighest rated pump speed. When the maker gives a range, this is its top.

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Pump power connectoriHow the pump gets power. A pump wired through a supplied hub or cable uses the plug at the motherboard or PSU end. A pump powered from SATA with a separate 3-pin speed lead is SATA power.

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VRM faniA small fan on the pump block that blows over the motherboard voltage regulators.

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Fans

2 of 2 differ

Included fansiFans in the box that cool the heatsink or radiator, one row per fan model. A VRM fan on the pump block is left out. Speed, airflow, pressure and noise are the maker's figures for one fan at full speed, in the fastest mode and without a low-noise adapter. When a range is published, the top of the range is stored. Count is the number of rotors, so a unified frame with three 120 mm rotors counts 3 with size 120. Min speed is the lowest speed while spinning. A zero RPM stop is not stored. FDB and S-FDB are fluid dynamic. HDB is hydrodynamic. Cooler Master's Loop Dynamic Bearing is loop dynamic. If the maker gives airflow only in m³/h, convert with 1 m³/h = 0.5886 CFM, round to one decimal and say so in the source note. Connector is the fan's power lead. A separate lighting lead is not counted, and a maker cable or adapter in the box that ends in a 4-pin PWM plug counts as 4-pin PWM, even when the fan's own lead is proprietary. For an air cooler with one fan, the maker's noise figure for the cooler is the fan noise. A figure the maker does not label per fan or in total counts as per fan. When a maker table prints noise for the whole cooler with no per-fan label and the maker's own data sheet for the same fan gives a figure, the fan data sheet figure is stored.

ACooler Master Hyper 212 Halo

Model	Size (mm)	Fans	Min speed (rpm)	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Noise (claimed) (dB(A))	Bearing	Connector
MF120 Halo²	120	1	650	2,050	51.88	2.89	27	Rifle	4-pin PWM

Source1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026Fan table: 120 x 120 x 25 mm, quantity 1, 650-2050 RPM +/-10%, 51.88 CFM (max), 2.89 mmH2O (max), 27 dBA (max), rifle bearing, 4-pin PWM. The fan is named MF120 Halo² in the page text. The lowest speed 650 RPM is the bottom of the published range. Bearing: Rifle.3Maker spec sheet (PDF)farnell.com/datasheets/3972778.pdfRead 15 October 2026Fan table matches the product page: 650 ~ 2050 RPM, 88.14 m3/h (51.88 CFM), 2.89 mmH2O, 27 dB(A), rifle bearing, 4-pin PWM.

BThermalright Peerless Assassin 120 SE

Model	Size (mm)	Fans	Max speed (rpm)	Airflow (CFM)	Static pressure (mmH₂O)	Noise (claimed) (dB(A))	Bearing	Connector
TL-C12C	120	2	1,550	66.17	1.53	25.6	Fluid dynamic (FDB)	4-pin PWM

Source1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026TL-C12C fan spec: 120 x 120 x 25 mm, 120 g each, rated speed 1550 RPM +/-10% (MAX), noise 25.6 dBA, air flow 66.17 CFM (MAX), air pressure 1.53 mm H2O (MAX), 0.20 A, 4 pin PWM connector, S-FDB bearing. S-FDB is stored as fluid dynamic. The page gives no minimum speed. Two fans come in the box per the installation guide parts list.2Owner's manualdownload.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdfRead 16 October 2026Parts list item B: Fan x2, and item C: Fan Y-cable x1 that joins both fans to one PWM header.4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026The package includes 2x TL-C12C 120mm fans. The fan table repeats Thermalright's figures: 1550 RPM +/-10%, 66.17 CFM, 1.53 mm H2O, 25.6 dB(A).

FansiNumber of included heatsink or radiator fans.

1=CalculatedFrom Included fans

2=CalculatedFrom Included fans

Display and lighting

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RGB lightingiLighting on the fans, the heatsink or the pump block.

Yes1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026Dual loop ARGB lighting on the MF120 Halo² fan.

No4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026The fan spec table lists Lighting: None, and the text says there is no RGB or lighting at all.

Lighting standardiThe named lighting connection. ARGB lighting alone does not prove a 5 V header. Proprietary means the maker's own hub or cable system.

ARGB 5 V5Maker product pagecoolermaster.com/en-global/products/masterfan-mf120-halo2-white-edition.htmlRead 15 October 2026The maker's stand-alone MF120 Halo² lists RGB Connector 3-Pin ARGB and RGB Rated Voltage 5 VDC. The cooler page names its fan MF120 Halo² and gives the same airflow, pressure and noise. The cooler page itself states no voltage. ALKtech confirms a 3-pin addressable RGB connector on the cooler fan.

Not available

Built-in screeniA screen on the pump block or the heatsink. LCD and OLED screens show images. A segment readout shows digits only, such as the CPU temperature.

None1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026The spec table lists no screen.

None4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026The review describes a dual-tower heatsink with two plain fans and no screen.

Screen sizeiDiagonal of the built-in screen.

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Screen resolution

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SoftwareiThe maker's software for lighting, the screen or the pump. Software that works with the cooler out of the box. Software that needs a separately sold controller is left out.

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Needs a USB headeriThe cooler needs an internal USB 2.0 header on the motherboard for software control, sensors or the screen. A wireless receiver that plugs into any USB port does not count.

No12Reviewaphnetworks.com/reviews/cooler-master-hyper-212-halo-white/3Read 15 October 2026The fan was connected to the motherboard 4-pin fan header. No USB cable or software is mentioned.14Reviewpcgamesn.com/cooler-masteRead 15 October 2026The 4-pin PWM cable powers the fan and lighting, and an extra 3-pin ARGB cable gives lighting control. No USB connection is described. RAM: the cooler does not overhang any memory slots, so ram_clearance_mm is left out.

No2Owner's manualdownload.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdfRead 16 October 2026The Fan Wiring panel shows only the 4-pin PWM CPU_FAN header, with a Y-cable for two fans. No USB connection is shown.

Measured

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Cybenetics THETA, AMD AM5iThe THETA level for this cooler's class on the Cybenetics AMD AM5 platform with a Ryzen 9 7900X. It is rated at 30 dB(A) normalized noise, or at 25 dB(A) for a cooler that cannot reach 30 dB(A). No level means tested without a level. A cooler that Cybenetics did not test on this platform is left out. A report with a heading for this platform but no results counts as not tested.

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Cybenetics THETA, Intel LGA1851iThe same rating on the Cybenetics Intel LGA1851 platform with a Core Ultra 9 285K. A cooler that Cybenetics did not test on this platform is left out. A report with a heading for this platform but no results counts as not tested.

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Overall performance at 30 dB(A), AM5 (measured)iThe Cybenetics Overall Performance score at 30 dB(A) normalized noise on the AMD AM5 platform. It is average CPU power times average CPU frequency divided by average CPU temperature. Higher is better. A cooler rated only at 25 dB(A) has no value here.

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Overall performance at 30 dB(A), LGA1851 (measured)iThe same score on the Cybenetics Intel LGA1851 platform. Scores from the two platforms are not comparable with each other.

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Noise at 100% fan setting (Cybenetics)iThe Cybenetics noise at the 100% fan setting, measured 1 m from the cooler in a hemi-anechoic chamber, with the pump of an AIO at full speed. Other reviewers' noise goes in the thermal test rows.

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Thermal tests (measured)iReviewer results, one row per test condition. Rows compare only when the test CPU, load, power and noise level match. The source note names the reviewer, ambient temperature, case or open bench, and thermal paste. Test CPU is the CPU name only, such as AMD Ryzen 9 7900X. The power limit and mode go in the load. Above ambient is stored only when the reviewer publishes it, never computed from the ambient.

ACooler Master Hyper 212 Halo

Test CPU	Load	Fan setting	CPU temperature (°C)
AMD Ryzen 7 3700X	Prime95 in-place large FFTs, 16 worker threads, at least 30 minutes until stable, stock settings, maximum core temperature	1 stock fan on the motherboard 4-pin fan header	74
AMD Ryzen 5 5600	Cinebench R23 multi core, default settings, average of CPU CCD1 Tdie	default fan curve	62.1
AMD Ryzen 5 5600	Prime95, default settings, average of CPU CCD1 Tdie	default fan curve	62.9
Intel Core i7-13700K	ten-minute multi-threaded stress test, stock settings	Not available	99

Source12Reviewaphnetworks.com/reviews/cooler-master-hyper-212-halo-white/3Read 15 October 2026APH Networks review of the White edition, which has the same heatsink and fan as the Black edition. AMD Ryzen 7 3700X on an MSI MPG X570 Gaming Plus in a Cooler Master MasterBox TD500 Mesh, room temperature about 18 C, the stock paste, stock fan in a push configuration on the motherboard 4-pin fan header, three extra case fans as intake. Prime95 in-place large FFTs with sixteen worker threads for at least 30 minutes, noted when stable (about 45 minutes). Temperature is the maximum core value in Core Temp. The result was 74 C. Noise is a 0 to 10 rating (1.0 idle, 3.0 under load), so no dB(A) is stored.13Reviewalktech.co/articles/review-cooler-master-hyper-212-halo-black-cpu-air-coolerRead 15 October 2026ALKtech review of 2023-03-28, Black edition. AMD Ryzen 5 5600 on a Gigabyte X570 Gaming X in an open-air bench, MasterGel Pro paste, default fan curves, surroundings about 29 C. HWiNFO64 CPU CCD1 Tdie. Cinebench R23 multi core: average 62.1 C (minimum 51.5, maximum 63.8). Prime95: average 62.9 C (low 52.5, high 71.5). The average is stored. Noise was only a phone app estimate, so no dB(A) is stored.14Reviewpcgamesn.com/cooler-masteRead 15 October 2026PCGamesN review of the White edition, updated 2024-04-17: Core i7-13700K reached 99 C after a ten-minute multi-threaded stress test. The case, ambient, paste and fan setting are not stated. The Ryzen 9 7900X topped 95 C within seconds and then lost clock speed, so no temperature is stored for it.

BThermalright Peerless Assassin 120 SE

Test CPU	Load	CPU power (W)	Fan setting	Above ambient (°C)
Intel Core i9-12900K	Cinebench with a 200 W CPU power limit, 10 minute run, be quiet! Silent Base 802 case	200	default motherboard fan curve	61
Intel Core i9-12900K	OCCT small data set with a 200 W CPU power limit, 10 minute run, be quiet! Silent Base 802 case	200	default motherboard fan curve	64

Source4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026Albert Thomas, review last updated 27 September 2022. Intel Core i9-12900K on an MSI Z690 A-Pro DDR4 in a be quiet! Silent Base 802 case. Each stress test ran 10 minutes with the fans on the motherboard's default fan curve. Row 1: Cinebench with a 200 W CPU power limit, the CPU averaged 61 degrees C over ambient. Row 2: OCCT small data set at 200 W, 64 degrees C over ambient. The ambient temperature, the paste and whether the case was closed are not stated. Noise and the other rows (95 W, 140 W, 50 percent fan speed) are only in chart images, so they are not stored.

Dimensions and weight

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DimensionsiAir coolers only. The cooler with its included fans in the standard position, without the mounting kit. Height runs from the bottom of the base to the top. Depth runs along the airflow, fans included. Width runs across the fins. Map by direction, not by letter. Width runs across the fins, depth runs along the airflow. DeepCool's 129 x 138 x 160 mm (L x W x H) is width 129, depth 138, height 160.

Width124Height154Depth73mm(4.9 × 6.1 × 2.9 in)1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026Dimensions (L x W x H) 124 x 73 x 154 mm. Read by direction: width 124 across the 120 mm fan frame, depth 73 along the airflow (fins plus the 25 mm fan), height 154. APH Networks says 154 mm includes the fan.3Maker spec sheet (PDF)farnell.com/datasheets/3972778.pdfRead 15 October 2026Dimensions (L x W x H) 124 x 73 x 154 mm.

Width125Height155Depth135mm(4.9 × 6.1 × 5.3 in)3Retailer pagewatercoolinguk.co.uk/product/thermalright-peerless-assassin-120-se-cpu-cooler-120mmRead 16 October 2026Technical details: Dimensions with fan 125 x 155 x 135 mm (W x H x D) and without fan 125 x 155 x 110 mm. The without-fan figure matches Thermalright's heatsink size, and the 25 mm front fan explains the extra 25 mm of depth. Paradigit prints 138 mm of depth with a width of 120 mm, which does not match Thermalright's 125 mm, so it is not used.

Heatsink dimensionsiAir coolers only. The heatsink without fans, as the maker lists it. Map by direction, not by letter. Width runs across the fins, depth runs along the airflow. DeepCool's 129 x 138 x 160 mm (L x W x H) is width 129, depth 138, height 160. A heatsink depth that equals the depth with fans includes the fan, so that axis is not stored.

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Width125Height155Depth110mm(4.9 × 6.1 × 4.3 in)1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Heatsink Specifications: L125 mm x W110 mm x H155 mm. L runs across the fins and W along the airflow of this dual-tower cooler, so width 125, depth 110 and height 155.

WeightiAn air cooler with its included fans. An AIO cooler as one unit with pump block, tubes, radiator and fans. Mounting hardware is left out when the maker states it separately. When one maker figure may include the mounting kit, such as a press release net weight above the product page figure, the product page figure is stored. An RGB edition can weigh a little more or less, so it is per variant.

690g(1.5 lb)3Maker spec sheet (PDF)farnell.com/datasheets/3972778.pdfRead 15 October 2026Net weight 0.69 kg, gross weight 0.84 kg with the package. The sheet does not say whether the mounting kit is in the net weight. APH Networks weighed 689 g with the fan.11Reviewaphnetworks.com/reviews/cooler-master-hyper-212-halo-white/2Read 15 October 2026Review of the White edition: 689 g including the fan. The Farnell sheet gives 0.69 kg net. 690 g is stored.

970g(2.1 lb)3Retailer pagewatercoolinguk.co.uk/product/thermalright-peerless-assassin-120-se-cpu-cooler-120mmRead 16 October 2026Technical details: Weight with fan 970 g and without fan 730 g (the page prints Weight with fan twice). 970 g equals the heatsink 730 g plus two 120 g fans. Tom's Hardware lists a net weight of 850 g, which fits one fan and is not used.

Heatsink weightiAir coolers only. The heatsink without fans.

Not available

730g(1.6 lb)1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026Heatsink Specifications: Weight 730g.

In the box

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In the boxiItems supplied with this exact model, verbatim.

Heatsink, MF120 Halo² 120 mm fan, AM4/AM5 mounting bracket, Intel LGA1700/1200/115x mounting bracket, Intel LGA1700/1200/115x mounting backplate, 2x screws, 2x metal fan clips, Tube of MasterGel Pro thermal paste, Instruction manual, Warranty information leaflet13Reviewalktech.co/articles/review-cooler-master-hyper-212-halo-black-cpu-air-coolerRead 15 October 2026Accessory list: instruction manual, warranty information leaflet, 1x tube of MasterGel Pro thermal paste, AM4/AM5 mounting bracket, Intel LGA1700/1200/115x mounting bracket, 2x screws, Intel LGA1700/1200/115x mounting backplate and 2x metal fan clips, plus the cooler tower and fan. The APH Networks and PCGamesN reviews of the White edition list the same kind of kit.

Heatsink x1, Fan x2, Fan Y-cable x1, AMD bracket x2, Intel bracket x2, Intel 115X/1200 back plate x1, Fan clip x4, 115X/1200 standoff x4, Intel screw x4, Thermal grease x1, AM4 standoff x4, AM4 screw x4, LGA17XX back plate x1, 17XX standoff x4, Installation guide2Owner's manualdownload.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdfRead 16 October 2026Parts List items A to N as printed, quantities kept. The guide's item F is the Intel 115X/1200 back plate and M the LGA17XX back plate. The Installation guide line comes from the Tom's Hardware package list, wording shortened.4Reviewtomshardware.com/reviews/thermalright-peerless-assassin-120-seRead 16 October 2026Package list: dual-tower heatsink, 2x TL-C12C fans, mounts for modern Intel and AMD platforms, a medium-sized tube of thermal paste, a fan splitter and an installation guide.

Links

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Product page

www.coolermaster.com/en-global/products/hyper-212-halo-black1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026

www.thermalright.com/product/peerless-assassin-120-se1Maker product pagethermalright.com/product/peerless-assassin-120-seRead 16 October 2026

Spec sheet

coolermaster.egnyte.com/dl/IoINrr4FyX1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026Link on the maker page under Downloads, Product Sheet. The Egnyte viewer returned no text. The same sheet was read through the Farnell copy.

Not available

Manual

coolermaster.egnyte.com/dl/i25XgdZmPF1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026Link on the maker page under Downloads, Manual. The Egnyte viewer needs a script and returned no text, so the manual was not read.

download.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdf2Owner's manualdownload.thermalright.com/manuals/PEERLESSASSASSIN120SE.pdfRead 16 October 2026One-page folded installation guide (English and Chinese), PDF dated November 2021.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

2years1Maker product pagecoolermaster.com/en-global/products/hyper-212-halo-blackRead 15 October 2026Warranty 2 years. The page names no market.

Not available

Both are also in the API. Back to all CPU coolers.