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ID-Cooling IS-40-XT Black specifications and in-depth review

ID-Cooling IS-40-XT Black

Manufacturer: ID-Cooling

The ID-Cooling IS-40-XT Black is a compact air CPU cooler built around a low-profile 47 mm heatsink that fits within tight chassis clearances while covering a broad range of current Intel and AMD platforms, including LGA 1851, LGA 1700, AM4, and AM5. At 290 g, it stays relatively lightweight, and thermal paste is included in the package, making it straightforward to install out of the box.

Cooling performance is handled by a single fan that spins up to 2800 RPM and moves up to 46 CFM of airflow. Noise output ranges from 14 dB at its quietest to 35.2 dB at full speed, with fluid dynamic bearings supporting smooth and consistent fan operation. The cooler does not feature RGB lighting or an integrated display, keeping the design functional and understated. ID-Cooling backs the IS-40-XT Black with a one-year warranty.

Pros
  • Fluid dynamic bearings support consistent and long-lasting fan operation
  • Thermal paste is included, simplifying the installation process
  • Compatible with a broad range of Intel and AMD sockets, including current-generation LGA 1851 and AM5
  • Minimum noise level of 14 dB makes it relatively quiet under light loads
  • Compact 47 mm heatsink height suits builds with limited vertical clearance
Cons
  • Maximum noise level of 35.2 dB at full fan speed is noticeable under sustained load
  • Single fan configuration limits redundancy in airflow delivery
  • No RGB lighting for users who prefer illuminated builds
  • Warranty period is limited to one year
  • Maximum airflow of 46 CFM may be insufficient for high thermal output scenarios
Who is this for?

This cooler is a practical choice for users building compact or small form factor systems where vertical clearance is restricted, given its 47 mm heatsink height. Its broad socket compatibility — spanning current platforms like LGA 1851, AM4, and AM5 — makes it a fitting option for builders who want flexibility across different CPU generations. Those who prioritize quiet operation during everyday tasks will also find the 14 dB minimum noise level well-suited to low-load, near-silent environments.

Who is this NOT for?

Users running thermally demanding workloads such as sustained rendering or heavy processing tasks may find the single-fan setup and 46 CFM airflow insufficient to maintain comfortable temperatures over extended periods. Builders who value RGB lighting for aesthetic customization will need to look elsewhere, as this cooler offers no illumination features. Additionally, those seeking longer-term coverage may find the one-year warranty limiting compared to what other products in this category offer.

Cooling:

Cooling type Air
Max fan RPM 2800 rpm
Max airflow 46 CFM
Number of fans 1

The IS-40-XT Black uses air cooling and is equipped with a single fan that reaches a maximum speed of 2800 RPM, delivering up to 46 CFM of airflow at peak operation.

Dimensions:

Heatsink/water block height 47 mm
Heatsink/water block width 94 mm
Heatsink/water block depth 94 mm

The heatsink measures 47 mm in height, with a width and depth of 94 mm each, giving it a square footprint that keeps the overall physical profile compact.

General info:

CPU socket LGA 1851, LGA 1700, LGA 1200, LGA 1151, LGA 1150, LGA 1155, AM4, AM5
Audible noise (min) 14 dB
Audible noise (max) 35.2 dB
weight 290 g
warranty period 1 years

This cooler is compatible with a wide range of sockets, covering Intel LGA 1851, LGA 1700, LGA 1200, LGA 1151, LGA 1150, and LGA 1155, as well as AMD AM4 and AM5. Audible noise ranges from a quiet 14 dB at minimum to 35.2 dB at full load, and the unit weighs 290 g. A one-year warranty is included.

Features:

Fan bearings Fluid dynamic bearings
has RGB lighting ✕
Thermal paste Included
Has a display ✕

The fan runs on fluid dynamic bearings, which support smooth and consistent operation over time. Thermal paste is included in the package, so no separate purchase is needed for installation. The cooler does not feature RGB lighting or an integrated display, keeping the design straightforward and free of additional visual elements.

Final Verdict

The ID-Cooling IS-40-XT Black is a purpose-built air cooler designed around the practical demands of compact system builds, where its 47 mm low-profile heatsink and wide socket compatibility make it genuinely versatile across current Intel and AMD platforms. Its fluid dynamic bearings and quiet minimum noise floor speak to a level of build consistency suited for everyday, low-intensity use. That said, the single-fan configuration and modest airflow ceiling mean it is best matched with moderate workloads rather than sustained high-output tasks. For builders prioritizing space efficiency and broad platform coverage over raw thermal headroom, the IS-40-XT Black delivers a focused, no-frills solution that knows its role well.