Deepcool

Deepcool DS9

Thermal Conductivity:: 6.5 W/mK
Electrical Conductivity:: Non-Conductive
Operating Temp:: -40 to 120 C
Recommended Use:: High-end CPU/GPU

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Manufacturer: Deepcool Last updated: 2026-09-15

Deepcool DS9 (Non-Conductive/6.5 W/mK/Elite-Grade Paste) Review

Deepcool DS9 is a specialist-grade thermal grease officially rated at 6.5 W/mK, sold in a larger 5g applicator with a bundled rubber spreader and cleaning wipe for high-end CPU and GPU cooling.

Deepcool itself grades DS9 as a 4-of-5-star "Specialist" tier compound, just below DS7's rating despite DS9 actually trailing DS7 slightly on raw conductivity (6.5 vs 6.9 W/mK). Where DS9 wins is quantity: 5g of grease per applicator versus DS7's 2g, more than enough for a CPU and GPU repaste plus a spare application down the line. Both share the same 3.5-ish g/cm3 density range and non-conductive, non-capacitive formula, so the real choice between them comes down to how much paste you need and whether DS9's slightly wider low-temperature floor (-40 C) matters for your setup.

Thermal Performance and Conductivity

Officially rated at 6.5 W/(m·K), Deepcool's own "Specialist" 4-of-5-star performance grade, adequate for high-end CPUs and GPUs by the brand's description.

Compound Type and Composition

Deepcool doesn't publish the specific compound chemistry, describing DS9 only as a highly advanced-level thermal grease with high thermal conductivity, temperature resistance and insulation properties.

Application and Consistency

Ships with a rubber spreader and cleaning wipe, and the 5g quantity is enough for multiple applications or a CPU-plus-GPU repaste.

Electrical Safety

Non-conductive and non-capacitive, per Deepcool's official spec sheet.

Comparison to Sibling Products

DS9 gives up a small amount of conductivity to DS7 (6.5 vs 6.9 W/mK) but more than doubles the grease weight (5g vs 2g), making it the better buy per application if you're not chasing the last fraction of a W/mK.

Specifications

Application

Applicator Included	Spatula

Quantity, volume versus weight

Density	3.5 g/cm3

Thermal Conductivity	6.5 W/mK
Electrical Conductivity	Insulating
Package Size	5 g grease weight (28 g net weight incl. applicator)
Recommended Use	High-end CPU/GPU (Deepcool's own 4-of-5-star "Specialist" performance grade)
Material	Not officially disclosed by Deepcool
Operating Temperature	-40°C to +120°C
Paste Segment	Standard Paste
Min Operating Temp	-40 C
Max Operating Temp	120 C

Expert Review

Reviewed by Burooj Alam. Rated by us, not by users.

Best for

Multi-application CPU/GPU repastes wanting more paste per purchase
High-end builds wanting Deepcool's second-highest officially published conductivity figure

Not for

Buyers chasing the single highest conductivity number (DS7 rates slightly higher)
Extreme sub-ambient cooling setups outside the -40 to 120 C range

FAQs

What are the key specifications of the Deepcool DS9 (Non-Conductive/6.5 W/mK/Elite-Grade Paste)?

The Deepcool DS9 (Non-Conductive/6.5 W/mK/Elite-Grade Paste) is a thermal paste from Deepcool. Key specs: Form Paste, Material Not officially disclosed by Deepcool, Thermal Conductivity 6.5, Electrical Conductivity Non-Conductive (not electrically conductive or capacitant, per Deepcool), Recommended Use High-end CPU/GPU (Deepcool's own 4-of-5-star "Specialist" performance grade).

Will the Deepcool DS9 (Non-Conductive/6.5 W/mK/Elite-Grade Paste) work with my current setup?

The Deepcool DS9 (Non-Conductive/6.5 W/mK/Elite-Grade Paste) lists Thermal Conductivity is 6.5. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the Deepcool DS9 (Non-Conductive/6.5 W/mK/Elite-Grade Paste) best suited to?

It suits multi-application cpu/gpu repastes wanting more paste per purchase, high-end builds wanting deepcool's second-highest officially published conductivity figure.

What are the drawbacks of the Deepcool DS9 (Non-Conductive/6.5 W/mK/Elite-Grade Paste)?

It is a poor fit for buyers chasing the single highest conductivity number (ds7 rates slightly higher), extreme sub-ambient cooling setups outside the -40 to 120 c range.