Brand | CS Labs |
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Manufacturer | Computer-Systems |
Model | LYSB00UTX7K2E-ELECTRNCS |
Part Number | K5-PRO 20g |
RAM | 1 TB |
Memory Type | VRAM |
Color Screen | No |
Batteries included | No |
Batteries Required | No |
Mounting type | Chassis Mount" or "PCB Mount |
Has auto-focus | No |
Includes rechargable battery | No |
Has Programmable Buttons | No |
Manufacturer | Computer-Systems |
Item model number | LYSB00UTX7K2E-ELECTRNCS |
Product Dimensions | 4 x 4 x 3 cm; 19.99 g |
ASIN | B00UTX7K2E |
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K5 PRO Viscous Thermal Paste for Thermal pad Replacement 20g Compatible with (iPhone, Apple iMac, Sony PS4 & PS3, Xbox, Acer Aspire etc)
Purchase options and add-ons
Brand | CS Labs |
Cooler heat-sink material | Copper |
Cooler heat sink compatibility | Universally compatible |
Item weight | 0.71 Ounces |
Mounting type | Chassis Mount" or "PCB Mount |
Manufacturer | Computer-Systems |
UPC | 635292526527 |
About this item
- K5-PRO is a high quality gummy / sticky thermal paste designed for use on memory chips and other components where thermal pads are originally used.
- K5-PRO can replace soft thermal pads that are used on computers (best performance up to 1mm, maximum gap that can be filled up to 3mm).
- K5-PRO has thermal conductivity K>5,3 W/m.K * (at least 3 times higher than common thermal pads that are used on computers and comercial electronics)
- K5-PRO is applied very easily directly on the component and has no electrical conductivity. Operational temperature -90 to 250 degrees (Celsius).
- No expiration date. Infinite storage / service life. Store in closed can and protect from frost and dust. Made in Greece (European Union)
- Compatible with many gaming laptops, game consoles, high end video boards, crypto mining etc.
- Compatible with Apple iMac, Asus ROG, Acer Nitro, MSI laptops, RTX 3080, 2080TI, 3090, PS4, Nintendo Switch, XBOX and all systems that use thermal putty or thermal pads
Frequently bought together

Product information
Technical Details
Additional Information
Date First Available | May 27 2015 |
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Customer Reviews |
4.5 out of 5 stars |
鶹 Rank |
|
Is discontinued by manufacturer | No |
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This Item ![]() K5 PRO Viscous Thermal Paste for Thermal pad Replacement 20g Compatible with (iPhone, Apple iMac, Sony PS4 & PS3, Xbox, Acer Aspire etc) | Recommendations | ||||
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Price | $20.99$20.99 | $51.00$51.00 | $13.99$13.99 | $16.90$16.90 | $18.99$18.99 |
Delivery | Get it by Monday, Jun 30 | Get it by Thursday, Jul 3 | Get it by Monday, Jun 30 | Get it by Monday, Jun 30 | Get it by Monday, Jun 30 |
Customer ratings | |||||
Sold by | Computer-Systems | Computer-Systems | Retail storee | iestar | SHUQIANGUANGGAO |
heat sink material | Copper | Aluminum | Copper | Aluminum | Either Copper or Aluminum |
compatible cooler | Universally compatible | — | Various coolers and heatsinks | Laptop Heatsink, CPU, GPU, SSD, IC, LED Cooler | DIP |
mounting type | Chassis Mount" or "PCB Mount | PCB Mount | — | Panel Mount | — |
noise level | — | 50 decibels | 0 decibels | — | 0 decibels |
weight | 0.7 ounces | 100 grams | 1 grams | 0.12 kilograms | — |
Product Description



Package including:
- K5 PRO 20g
- Wooden stick for easy application
- Instruction flyer
- Zip bag
K5 PRO viscous thermal paste for thermal pad replacement 20g
Compatible with Apple iMac, Sony PS4 & PS3, XBOX, Acer Aspire etc
K5-PRO viscous thermal paste is developed and produced by Computer Systems research department. This product was developed as part of C.S. Labs BGA rework research project with the support of Greece and Europian Union. This product is designed to reduce the chances of BGA component failure for reasons related to overheating. This packet includes 20g of K5-PRO gummy thermal paste for use instead of soft thermal pads that are usually installed inside computers and
other commercial electronics
- K5-PRO is a high quality gummy / sticky thermal paste designed for use on memory chips and GPUs of various computers including Acer Aspire 6930 , Apple iMac A1311 video boards.
- This is the available product at the moment that can replace the gummy thermal paste that is originally used by Apple.
- K5-PRO can replace soft thermal pads that are used on computers (up to 3mm thick)
- K5-PRO has thermal conductivity K>5,3 W/m.K (at least 3 times higher than common thermal pads that are used on computers and comercial electronics)
- K5-PRO is applied very easily directly on the component and has no electrical conductivity. It can be heated up to 250 degrees (Celcium) and has a long operational life time (practically infinite)
- Expiration date: No expiration date (new formula). Infinite storage / service life. Protect from frost and dust
K5-PRO 10g
This packet includes 10g of K5-PRO gummy thermal paste for use instead of soft thermal pads that are usually installed inside computers and other commercial electronics. This quantity is enough for about 60 applications. Packet contains: 10g K5-PRO high quality / high thermal conductivity gummy thermal paste. This offer of K5 PRO comes in a liposan-kind package for easier application. You can see our application instructions videos on our youtube page " ComputerSystemsGR "
K5 PRO 20g
This packet includes 20g of K5-PRO gummy thermal paste for use instead of soft thermal pads that are usually installed inside computers and other commercial electronics. This quantity is enough for about 40 applications.Replacing the thermal pads and the gummy thermal paste that is used by Apple on the memory chips is very important if the heat sink is removed because if you reuse the same thermal pads or paste the heat sink is impossible to fit perfectly again and the component will be overheated and will fail soon.
K5-PRO 30g
This new packaging offers easier and faster application since you will be able to apply K5-PRO, on memory chips and the GPUs, directly from its container without using a spreader scraper. K5-PRO viscous thermal paste is designed to reduce the chances of BGA component failure for reasons related to overheating. This packet includes 30g of K5-PRO gummy thermal paste for use instead of soft thermal pads that are usually installed inside computers and other commercial electronics. This quantity is enough for about 60 applications. This offer of K5 PRO comes in a liposan-kind package for easier application.
K5 PRO 60g (3*20g)
This packet includes 3 X 20g of K5-PRO gummy thermal paste for use instead of soft thermal pads that are usually installed inside computers and other commercial electronics. This quantity is enough for about 120 applications. Packet contains: 3 X 20g (60g in total) K5-PRO high quality / high thermal conductivity gummy thermal paste You can see our application instructions videos on our youtube page " ComputerSystemsGR "
K5-PRO 60g (6*10g)
This packet includes 6 X 10g of K5-PRO gummy thermal paste for use instead of soft thermal pads that are usually installed inside computers and other commercial electronics. This quantity is enough for about 120 applications. Packet contains: 6 X 10g (60g in total) K5-PRO high quality / high thermal conductivity gummy thermal paste You can see our application instructions videos on our youtube page " ComputerSystemsGR "
K5 PRO 110g
This packet includes 110g of K5-PRO gummy thermal paste for use instead of soft thermal pads that are usually installed inside computers and other commercial electronics. This quantity is enough for about 200 applications. Packet contains: 110g K5-PRO high quality / high thermal conductivity gummy thermal paste You can see our application instructions videos on our youtube page " ComputerSystemsGR "
K5-PRO 400g
This packet includes 400g of K5-PRO gummy thermal paste for use instead of soft thermal pads that are usually installed inside computers and other commercial electronics. This quantity is enough for about 800 applications. Packet contains: 400g K5-PRO high quality / high thermal conductivity gummy thermal paste You can see our application instructions videos on our youtube page " ComputerSystemsGR ".
Ultimate Repaste KIT K5 PRO KRYO33 & K5-PRO Set
This offer is for a set of thermal pastes which can be used to replace both thermal pastes and thermal pads on laptops, desktops, cryptocurrency video board miners and gamestations compatible with iPhone Apple iMac, Apple Macbook, Sony Playstation 3, PS4, Microsoft XBOX, etc. The set includes 3g of highest thermal conductivity KRYO33 paste and 10g of viscous thermal paste K5 PRO (for use instead of thermal pads on memory chips and other components).

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Customer reviews
Customers say
Customers like the thermal performance, quality, and thickness of the heat sink. They mention it works well, the results are awesome, and temperatures are no different than before. Customers also say it's a good product for graphic cards. However, some customers have mixed opinions on the application.
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Customers like the thermal performance of the product. They mention it works well, the results are awesome, and temperatures are no different than before. Some say it can be used as a thermal paste and is perfect for replacement of OEM thermal paste on components when upgrading.
"...this i used as a last resort for thermal paste and it surprisingly works decently not as good as thermal paste but gets the job done which more than..." Read more
"This thermal paste is perfect for replacement of OEM thermal paste on components when upgrading or replacing thermal paste...." Read more
"...Works well in terms of thermals, but it is a pain in the butt to apply unless you have a spare spreader laying around...." Read more
"...Temperatures are no different than before (but keep in mind heat issues) so the paste is pretty good." Read more
Customers are satisfied with the quality of the heat sink. They mention it's a good product for graphic cards and has a factory look that works.
"...amount exactly where I wanted them to go, the results... a factory look that works! Finally I can assemble my laptop and get back my gaming!..." Read more
"Very Good Product for Graphic Card" Read more
"...The product is excellent. if youa re going to reflow your GPU on iMAC, you need this paste...." Read more
"Good product. It takes a bit longer time for delivery." Read more
Customers like the thickness of the heat sink. They mention it works super great and hasn't shorted out anything. Some say it's a much thicker thermal paste that could replace their factory.
"...do swap out thermal pads with this stuff its quite effective and reasonably thick" Read more
"...I did some research and came across this much thicker thermal paste...." Read more
"...Little bit hard and messy to apply but I got a thick paste that could replace my factory pads. Highly recommended!..." Read more
"Works super great, very thick and hasn't shorted anything out. Will last you a long time if you seal it properly and use parafilm store in the fridge" Read more
Customers have mixed opinions about the application of the heat sink. Some mention it's easy to apply, while others say it's a pain in the ass to apply properly.
"...my iMac model has heat issues, this paste was relatively easy to apply as a replacement...." Read more
"...Works well in terms of thermals, but it is a pain in the butt to apply unless you have a spare spreader laying around...." Read more
"Thick and sticky. easy to apply, this paste replaces very well about any chipset or graphics thermal pad in laptop...." Read more
"...Very impressed. Huge pain in the ass to apply properly though, very messy but it works...." Read more
Reviews with images

Guys, don't bother with Thermal Pads, save yourself the pain! :)
Top reviews from Canada
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- Reviewed in Canada on April 4, 2023Verified Purchasecan be used as thermal paste (found out because i ran out of thermal paste in the middle of re apply, and this i used as a last resort for thermal paste and it surprisingly works decently not as good as thermal paste but gets the job done which more than what can be said about any thermal pad that i know of and relatively stable (using it on a laptop ) as for the VRMs the temps are VERY noticable from before id say about a 8C difference on the temps of there from what i can tell from monitoring , will update if any changes arise WOULD RECOMMEND, also make sure you get thermal paste along with it or have enough when you do swap out thermal pads with this stuff its quite effective and reasonably thick
- Reviewed in Canada on November 25, 2019Verified PurchaseThis thermal paste is perfect for replacement of OEM thermal paste on components when upgrading or replacing thermal paste.
I used this specifically for some iMac GPUs that I reflowed to repair rather than replace. I have reflowed a few GPUs this way, and the first time around I had used thermal paste on some of the modules that had originally had thermal pads. I found that the first time I did this the GPU began to have issues about a month after.
I did some research and came across this much thicker thermal paste. This allows for a thicker application to be applied to the modules that previously had thermal pads and ensured a good contact was maintained with the heat plate.
The 20g container will last a very long time and it’s nice that a small spreader was included. The spreader looks like a small painted popsicle stick cut to an angle. Although it is useable, I found it a bit short, and used a long thin spudger I had on hand. This isn’t an issue to me at all as the job can still be done with the supplied spreader.
Overall I’m very happy with this purchase and highly recommend it for anyone replacing thermal pads. Especially for anyone wanting to try reflowing an Apple GPU rather than buying a replacement. This helped save me hundreds of dollars.
- Reviewed in Canada on June 8, 2020Verified PurchaseOrdered this to clean up and re-thermal some older rigs and graphics cards. Works well in terms of thermals, but it is a pain in the butt to apply unless you have a spare spreader laying around. It ships with a 1 inch popsicle stick as an applicator. Immediately tossed that and used an old Arctic Silver spreader. If you're looking for thermal compound on a budget, this stuff works well.
- Reviewed in Canada on April 27, 2019Verified PurchaseSeriously, I have spent the last 9+ months trying to locate the exact thermal pads for my Alienware 17 R3 without any success! Unfortunately, the factory thermal pads are very soft (probably 15-20 Shore 00) and are 0.8mm thick (Measured numerous times with my digital calipers!). Don't bother emailing Alienware or Dell, they simply will not rely. That being said, there are no commercially available pads that will work properly. If you don't believe me, then please crack open you laptop and you'll see for yourself that the heat sink does not sit on the CPU and GPU properly due to the negative push back of the thermal pad! Ok, well along came K5-Pro from our friends in Greece, Thank you! Their application method is a bit Betty Crocker for my liking, so I decided to use an old Arctic Silver 5 syringe applicator that actually put the right amount exactly where I wanted them to go, the results... a factory look that works! Finally I can assemble my laptop and get back my gaming! Thanks Computer-Systems! ευχαριστώ!!!
5.0 out of 5 starsSeriously, I have spent the last 9+ months trying to locate the exact thermal pads for my Alienware 17 R3 without any success! Unfortunately, the factory thermal pads are very soft (probably 15-20 Shore 00) and are 0.8mm thick (Measured numerous times with my digital calipers!). Don't bother emailing Alienware or Dell, they simply will not rely. That being said, there are no commercially available pads that will work properly. If you don't believe me, then please crack open you laptop and you'll see for yourself that the heat sink does not sit on the CPU and GPU properly due to the negative push back of the thermal pad! Ok, well along came K5-Pro from our friends in Greece, Thank you! Their application method is a bit Betty Crocker for my liking, so I decided to use an old Arctic Silver 5 syringe applicator that actually put the right amount exactly where I wanted them to go, the results... a factory look that works! Finally I can assemble my laptop and get back my gaming! Thanks Computer-Systems! ευχαριστώ!!!Guys, don't bother with Thermal Pads, save yourself the pain! :)
Reviewed in Canada on April 27, 2019
Images in this review
- Reviewed in Canada on May 19, 2022Verified PurchaseYou have to use a fair amount, I put it on the VRM only on my GPU as the stock thermal pads were constantly hitting 100-104c and thats just unacceptable honestly.
Using this brought temps down to a far more respectable 85-90c when under full load, around a 15c average drop. Very impressed.
Huge pain in the ass to apply properly though, very messy but it works.
If you already have a very high end video card that isn't overheating with its stock pads, I probably wouldn't bother using this though, best used on laptops, macs and under-performing thermal pads on things. Wont outperform a high quality thermal pad, but it absolutely will outperform when you find a pad is not performing properly on an existing piece of hardware.
DO NOT USE ON A CPU OR GPU CORE.
- Reviewed in Canada on April 23, 2025Verified PurchaseWorked super good and got it super fast!
- Reviewed in Canada on April 21, 2022Verified PurchaseNot suitable for very hot VRAM like on the 3080. I bought a 2nd tub of this thinking my coverage was inadequate with the results I was seeing but no, the performance is awful compared to aftermarket thermal pads. My temps are 20c hotter, hitting the thermal throttle limit while performance is down 20% and this is without the overclock I had previous.
I'll have to scrub off most of this messy goop and go back to thermal pads.
I'm sure it's fine and convenient for lower end components and it's probably worse than stock for my RTX 3080.
1.0 out of 5 starsNot suitable for very hot VRAM like on the 3080. I bought a 2nd tub of this thinking my coverage was inadequate with the results I was seeing but no, the performance is awful compared to aftermarket thermal pads. My temps are 20c hotter, hitting the thermal throttle limit while performance is down 20% and this is without the overclock I had previous.Awful performance on high end GPU VRAM.
Reviewed in Canada on April 21, 2022
I'll have to scrub off most of this messy goop and go back to thermal pads.
I'm sure it's fine and convenient for lower end components and it's probably worse than stock for my RTX 3080.
Images in this review
- Reviewed in Canada on March 27, 2020Verified PurchaseWhile my iMac model has heat issues, this paste was relatively easy to apply as a replacement. Temperatures are no different than before (but keep in mind heat issues) so the paste is pretty good.