Affordable all-in-one liquid coolers make it easier to manage CPU temperatures without spending premium money. This roundup compares 10 strong options under $100, from space-saving 120mm units to larger 360mm radiators.
Use the guide below to match radiator size, socket support, noise expectations, and lighting features to your build before choosing an AIO cooler.
Best 10 Computer Liquid Coolers Under 100 Picks for 2026
High-Performance Pick
ARCTIC Liquid Freezer III Pro 360 A-RGB
- 360 mm radiator with three P12 Pro fans
- Integrated VRM fan and cable management
- Supports LGA1851, LGA1700, AM4, and AM5
Best For: High-load systems with room for a 360 mm radiator
Balanced 240 mm Choice
- 240 mm radiator with dual ARGB PWM fans
- Integrated three-phase pump and split-flow design
- Supports LGA1851, LGA1700, AM5, and AM4
Best For: Mainstream builds needing a compact 240 mm AIO
Quiet Cooling Pick
ARCTIC Liquid Freezer III Pro 360
- 360 mm radiator with three P12 Pro fans
- Integrated VRM fan and concealed cable routing
- Six-year warranty with broad socket support
Best For: Performance builds that favor cooling over RGB lighting
High-Airflow RGB Pick
- 360mm radiator with three 120mm PWM fans
- Up to 67.62 CFM airflow
- Supports Intel and AMD platforms
Best For: Large, illuminated desktop builds needing broad socket compatibility
Compact Value Pick
- 240mm radiator with two 120mm PWM fans
- White LED pump lighting
- Supports Intel LGA1700 and AMD AM5
Best For: Straightforward 240mm cooling in a compatible desktop build
Reliable RGB Cooling
- 240mm radiator and dual-chamber pump
- SickleFlow PWM fans reach 62 CFM
- Broad socket support with customizable RGB
Best For: RGB-focused desktop builders needing a versatile 240mm AIO
Compact ARGB Value
Thermalright Aqua Elite 120 V3
- Compact 120mm liquid-cooling design
- Up to 66.17 CFM and 25.6 dBA listed noise
- Supports AM4, AM5, LGA1700, and LGA1851
Best For: Compact builds needing modern socket compatibility
LCD Display Upgrade
Thermalright FW240 White ARGB V2
- 240mm radiator with IPS LCD pump screen
- Dual 2,000 RPM PWM fans reach 70.84 CFM
- White ARGB design supports AM4, AM5, and LGA1700
Best For: White PC builds wanting display customization and strong airflow
High-Performance Pick – ARCTIC Liquid Freezer III Pro 360 A-RGB
For shoppers comparing computer liquid coolers under 100, the ARCTIC Liquid Freezer III Pro 360 A-RGB stands out with a 360 mm radiator, three P12 Pro fans, and features designed for efficient CPU and VRM cooling. It supports Intel LGA1851/LGA1700 and AMD AM4/AM5 platforms.
Best For: High-load gaming and performance-focused desktop builds that can accommodate a 360 mm radiator.
Pros:
- 360 mm radiator with three high-performance P12 Pro fans.
- Native offset mounting helps direct the cold plate toward CPU hotspots.
- Integrated VRM fan and concealed fan-cable management.
- Six-year warranty and broad current-socket compatibility.
Cons:
- The larger 360 mm radiator requires a compatible case.
- Its 2,020 g weight may make installation less convenient than smaller coolers.
This is a strong choice when cooling capacity and thoughtful installation details matter more than compact sizing. Verify that your case supports the radiator before buying.
Balanced 240 mm Choice – MSI MAG Coreliquid A13 240
The MSI MAG Coreliquid A13 240 is a practical option among computer liquid coolers under 100, pairing a 240 mm radiator with dual 120 mm ARGB PWM fans. Its integrated three-phase pump, 390 mm tubing, and support for current Intel and AMD sockets suit mainstream desktop builds.
Best For: Builders who want a compact 240 mm all-in-one cooler with ARGB lighting and broad socket compatibility.
Pros:
- 240 mm radiator with two 120 mm ARGB PWM fans.
- Integrated pump uses a split-flow radiator design.
- Long, evaporation-resistant 390 mm reinforced tubing.
- Supports Intel LGA1851/LGA1700 and AMD AM5/AM4; thermal paste is included.
Cons:
- Its three-year warranty is shorter than some alternatives in this roundup.
- It uses an aluminum radiator, so buyers should follow the installation guidance carefully.
MSI’s A13 240 balances size, socket support, and included features. It is a sensible fit for cases that cannot accommodate a 360 mm radiator.
Quiet Cooling Pick – ARCTIC Liquid Freezer III Pro 360
For computer liquid coolers under 100, the ARCTIC Liquid Freezer III Pro 360 offers a performance-oriented 360 mm design without the A-RGB lighting emphasis. It includes three P12 Pro fans, offset mounting for Intel and AMD processors, and an integrated VRM fan.
Best For: Desktop builders prioritizing radiator capacity, airflow, and practical cable routing over decorative lighting.
Pros:
- Three 120 mm P12 Pro fans provide up to 77 cfm of airflow.
- Offset cold-plate mounting targets CPU hotspots on supported platforms.
- Integrated VRM fan helps cool motherboard voltage converters.
- Six-year warranty and support for LGA1851, LGA1700, AM4, and AM5.
Cons:
- The 360 mm radiator needs a suitably large and compatible case.
- This model does not list A-RGB lighting, which may disappoint lighting-focused builders.
Choose this version when functional cooling features are more important than lighting. Its radiator size and integrated fan design make case compatibility the key consideration.
RGB Value Option – Cooler Master 240 Core II AIO
The Cooler Master 240 Core II is a compelling entry among computer liquid coolers under 100 for builders who want a 240 mm AIO with customizable ARGB lighting. Its dual-chamber pump, two low-noise PWM fans, and included CryoFuze thermal paste support straightforward AM4, AM5, LGA1700, and LGA1851 installations.
Best For: Gaming PCs seeking a compact 240 mm cooler with an infinity-mirror pump design and motherboard-controlled ARGB.
Pros:
- Infinity-mirror pump design adds customizable ARGB lighting.
- Dual-chamber pump directs water flow toward the CPU hotspot.
- Two PWM fans operate from 650 to 1,750 rpm for quiet-focused cooling.
- Includes brackets and CryoFuze thermal paste for supported sockets.
Cons:
- The listed 30 dB noise level may be higher than quieter alternatives.
- A 240 mm radiator offers less radiator area than a 360 mm design.
This cooler makes sense for a visually styled gaming build with moderate space constraints. Its 240 mm format is easier to accommodate than a 360 mm unit, while the dual-chamber pump and ARGB head add useful features.
High-Airflow RGB Pick – Antec Ultra 360 ARGB
For shoppers comparing computer liquid coolers under 100, the Antec Ultra 360 ARGB offers a large 360mm radiator, three 120mm PWM fans, and a copper base plate aimed at efficient heat transfer. Its mirror-style pump head and ARGB lighting also add a visual upgrade to a compatible desktop build.
Best For: Users who want a 360mm cooler with strong airflow, broad Intel and AMD socket support, and customizable ARGB lighting.
Pros:
- Three 120mm ARGB PWM fans provide up to 67.62 CFM of airflow.
- Efficient pump and large copper base plate support thermal conductivity.
- Supports Intel LGA 115X/1200/1366/1700/1851/20XX and AMD AM4/AM5.
- Includes a two-year warranty.
Cons:
- The 360mm radiator requires sufficient case space.
- Its listed noise level is 33.05 dB, higher than some smaller options here.
The Ultra 360 ARGB is a feature-rich choice when cooling capacity and lighting matter more than compact installation. Confirm your case radiator clearance and motherboard lighting connections before buying.
Compact Value Pick – ID-COOLING FROSTFLOW X 240
The ID-COOLING FROSTFLOW X 240 is a straightforward option among computer liquid coolers under 100, pairing a 240mm radiator with two 120mm PWM fans. Its white pump lighting provides a clean accent without relying on elaborate lighting features.
Best For: Builders seeking a 240mm AIO with simple white illumination, PWM fan control, and common Intel or AMD socket support.
Pros:
- 240mm radiator and two 120mm PWM fans support heat transfer.
- Listed 30 dB noise level suits users seeking a relatively quiet setup.
- Compatible with Intel LGA1700/1200/1151/1150/1155/1156 and AMD AM5/AM4.
- White LED pump lighting complements a light-themed build.
Cons:
- Lighting is limited to classic white LED rather than ARGB customization.
- The included two-fan design offers less radiator and fan capacity than 360mm models.
Choose the FROSTFLOW X 240 when you want an uncomplicated 240mm liquid cooler for a compatible desktop. Its more modest format can be easier to accommodate, but verify your case and socket requirements first.
Quiet ARGB Performance Pick – Thermalright Aqua Elite 360 V3
The Thermalright Aqua Elite 360 V3 is a strong contender among computer liquid coolers under 100 for builders who value a 360mm radiator, synchronized ARGB lighting, and PWM control. Its three preinstalled fans and included hub are designed to simplify setup and cable management.
Best For: Performance-focused desktop builders who want high airflow, low listed fan noise, and motherboard-synchronized ARGB effects.
Pros:
- Three TL-C12b-S V2 fans provide up to 66.17 CFM airflow.
- Fans are rated at no more than 23 dBA, while the product lists 25.6 dB noise.
- 5V 3-pin ARGB supports motherboard lighting synchronization.
- Preinstalled fans and an included fan hub can ease installation and cable management.
Cons:
- The 360mm radiator needs adequate case clearance.
- Its ARGB lighting requires a compatible 5V 3-pin motherboard connection for synchronization.
The Aqua Elite 360 V3 combines a large radiator with quiet-rated fans and practical installation extras. It is especially appealing for an ARGB build, provided your case and motherboard support the required connections.
Reliable RGB Cooling – MasterLiquid ML240L RGB V2
The CoolerMaster MasterLiquid ML240L RGB V2 is a strong option for shoppers comparing computer liquid coolers under 100. Its 240mm radiator, third-generation dual-chamber pump, and SickleFlow PWM fans are designed to balance cooling performance, airflow, and noise, while customizable RGB lighting adds visual appeal.
Best For: Desktop builders who want a 240mm AIO with broad AMD and Intel socket compatibility, customizable RGB lighting, and an anti-leak seal design.
Pros:
- 240mm radiator with a third-generation dual-chamber pump
- SickleFlow fans provide up to 62 CFM of airflow at up to 1,800 RPM
- Customizable RGB lighting and compatibility with numerous AMD and Intel sockets
- Industrial-grade EPDM sealing is designed to improve longevity and reduce leak risk
Cons:
- Its 30 dB noise rating may be less appealing for users prioritizing the quietest setup
- Requires space for a 240mm radiator and compatible RGB connections
Choose this model when you want a feature-rich 240mm cooler from an established cooling brand. Its combination of pump design, lighting, and socket support makes it a versatile choice, provided your case can accommodate the radiator.
Compact ARGB Value – Thermalright Aqua Elite 120 V3
The Thermalright Aqua Elite 120 V3 is a practical pick among computer liquid coolers under 100 when case space is limited. Its 120mm radiator, fourth-generation pump head, and PWM ARGB fan provide a compact liquid-cooling setup with motherboard lighting synchronization.
Best For: Compact desktop builds and budget-conscious users who need support for modern AM4, AM5, LGA1700, and LGA1851 platforms.
Pros:
- Compact 120mm radiator is suitable for systems with less mounting space
- Fourth-generation pump operates at up to 2,800 RPM
- Fan delivers up to 66.17 CFM with a listed noise level of up to 25.6 dBA
- 5V 3-pin ARGB and PWM connections support motherboard synchronization and automatic speed control
Cons:
- A 120mm radiator has less surface area than larger 240mm alternatives
- Lighting synchronization requires a compatible 5V 3-pin ARGB motherboard connection
This cooler makes the most sense when compatibility and compact dimensions matter more than maximum radiator capacity. It offers modern socket support, a capable pump, and useful ARGB control in a smaller format.
LCD Display Upgrade – Thermalright FW240 White ARGB V2
The Thermalright FW240 White ARGB V2 stands out among computer liquid coolers under 100 with its IPS LCD pump display and white ARGB styling. Its 240mm radiator, 2,000 RPM PWM fans, and 3000 RPM pump are suited to users who want both visible customization and higher-airflow cooling hardware.
Best For: White-themed gaming PCs and desktop builders who want a 240mm AIO with a customizable LCD pump screen.
Pros:
- IPS LCD pump screen supports static and dynamic images, with system projection supported by software
- 240mm radiator paired with two PWM fans reaching 2,000 RPM
- Fans provide up to 70.84 CFM of airflow with a listed noise level of 22.1 dB
- Supports AMD AM4/AM5 and multiple Intel sockets, including LGA1700
Cons:
- The LCD and ARGB features may require additional software or compatible motherboard connections
- Its 277mm radiator and 52mm overall radiator specification require careful case-clearance planning
This model is a good fit if the pump display is as important to you as cooling performance. Confirm your case dimensions and motherboard has a 5V 3-pin ARGB header before buying to use its lighting features fully.
How We Picked the Best Computer Liquid Coolers Under 100
We focused on the features that matter most in a budget AIO: radiator size, pump and fan design, socket compatibility, installation practicality, and overall value. The selection includes 120mm, 240mm, and 360mm coolers so shoppers can compare options for compact cases, mainstream gaming systems, and higher-wattage CPUs.
We also considered useful extras such as PWM fan control, ARGB lighting, included mounting hardware, radiator thickness, and display features. Because pricing changes frequently, verify the current price and compatibility details before checkout.
Quick Comparison
| Radiator size | Best suited for | Main advantage | Potential limitation |
|---|---|---|---|
| 120mm | Small cases and moderate CPUs | Simple installation and broad case compatibility | Less cooling capacity than larger radiators |
| 240mm | Most gaming and productivity builds | Strong balance of performance, size, and cost | Requires two-fan radiator clearance |
| 360mm | High-performance CPUs and spacious cases | More radiator surface area and airflow | Needs generous top or front mounting space |
Key Buying Factors for Computer Liquid Coolers Under 100
Radiator Size and Case Fit
Check your case manual for supported radiator locations before buying. A 360mm unit typically needs three 120mm fan positions, while a 240mm model needs two. Front mounting may also affect GPU clearance, tubing position, and airflow direction.
CPU Socket and Mounting Support
Confirm support for your processor socket, such as Intel LGA 1700 or 1851 and AMD AM4 or AM5. Some coolers list older sockets as well, but included brackets can vary by revision.
Cooling, Noise, and Control
Larger radiators can move heat with lower fan speeds, but pump and fan noise still depend on the cooler’s design and your motherboard’s control settings. PWM fans are preferable because they allow automatic speed adjustment based on CPU temperature.
Features and Maintenance
ARGB lighting and LCD displays add visual appeal but should not outweigh fit or cooling needs. AIO coolers are generally low-maintenance compared with custom loops, though you should keep radiator fins and fans free of dust and monitor for unusual pump noise or leakage.
Who Should Buy Which Computer Liquid Coolers Under 100?
- Choose a 120mm cooler if you have a compact case, a moderate-power CPU, or limited radiator clearance.
- Choose a 240mm cooler if you want the most practical balance for a mainstream gaming or workstation build.
- Choose a 360mm cooler if your case supports it and you run a high-wattage processor, sustained workloads, or aggressive boost settings.
- Prioritize compatibility over lighting when building in a tight chassis or upgrading an older system.
For most buyers, a well-supported 240mm AIO is the safest starting point among Computer Liquid Coolers Under 100. Move to 360mm when your case and CPU justify the extra radiator capacity, or choose 120mm when compact installation matters most.