ASUS ROG Strix LC II 240 ARGB White Edition: features, specs and fit

The ASUS ROG Strix LC II 240 ARGB White Edition is a closed-loop liquid CPU cooler with a 240mm radiator and two 120mm fans. It is meant for builders who want to cool an unlocked Intel or AMD processor with a sealed, maintenance-free loop and who like a white-and-lighting look to match a ROG motherboard.

How an all-in-one cooler works

A sealed all-in-one (AIO) cooler has three main parts: a pump block that sits on the processor, tubes, and a radiator. Liquid picks up heat at the block, travels through the tubes to the radiator, and fans blow air through the radiator fins to release it. Because the loop is closed and pre-filled, there is typically no filling or maintenance involved, unlike custom loops.

The "240" refers to the radiator size: it takes two 120mm fans side by side. In general, a larger radiator has more surface area to shed heat than a smaller one, which is why 240mm and 360mm coolers are common choices for high-power processors.

The pump

ASUS says the cooler uses a seventh-generation Asetek pump, with an operating range that starts at 840 rpm. The brand describes this as delivering strong cooling with minimal noise. A lower minimum pump speed typically means the pump can run more quietly at idle. The pump block has an NCVM coating, a metallic finish that ASUS says gives it a sleek, modern look, with individually addressable RGB lighting.

Fans and airflow

The two radiator fans are ROG-designed, 120mm, 4-pin PWM units with addressable RGB. The 4-pin PWM connection lets the motherboard adjust fan speed smoothly according to temperature. ASUS says the blades are optimised for airflow and static pressure. Static pressure is the ability to push air through resistance, which matters when air has to pass through dense radiator fins.

Tubing and appearance

The tubing is sleeved and reinforced, which ASUS says increases durability. Sleeving also tends to make the tubes look neater and helps them resist kinking when routed in a case. The White Edition is styled to complement ROG motherboards, and the ARGB lighting is individually addressable, so effects can be controlled through compatible motherboard software.

Socket support

The listing names these sockets:

• AMD: AM4 and TR4
• Intel: LGA 1700, 1200, 115x, 1366, 2011, 2011-3 and 2066

Newer sockets released after this cooler, including newer AMD platforms, are not listed, so check the maker's compatibility notes if you are building on a recent board.

Who it suits

It fits builders on supported sockets who want liquid cooling with a white, lit-up appearance, and whose case can take a 240mm radiator. The unit weighs 2.2 lb (about 1 kg).

What to check before you buy

• Socket: confirm your motherboard's socket appears in the supported list above.
• Case support: check that your case has a 240mm radiator mount, usually at the top or front, and enough clearance for the fans.
• Memory and VRM clearance: make sure the radiator and fans don't collide with tall RAM or motherboard heatsinks.
• Headers: you need a fan header for the pump and fans, and an addressable RGB header if you want the lighting.
• Lighting software: check that your motherboard's lighting control works with the connector type.
• What's in the box: the manual lists the mounting hardware for each socket.

The short version

• A 240mm sealed liquid cooler with two 120mm 4-pin PWM ARGB fans.
• Seventh-generation Asetek pump with an operating range starting at 840 rpm.
• Sleeved, reinforced tubing and an NCVM-coated, addressable RGB pump block.
• Supports recent-generation and older AMD AM4/TR4 and Intel LGA 1700, 1200, 115x, 1366, 2011, 2011-3 and 2066 sockets.
• Check your socket and case radiator support first.

Bloiq is reader-supported. Some links may earn us a commission; it never affects what we write. How we make money.