Can the heatsinks help cool my raspberry pi 4 from 100°f down to something like 80°f?

You must mean Celsius, not Fahrenheit. And it entirely depends on the situation, your ambient temperature, and how hard the Pi is being used. The only real way to know for your situation is to try it. I'd recommend removing (scraping off) the thermal pad and just using a small amount of thermal paste (about 1/4 of a green pea). I've had no issues with the heatsink sliding off, even mounted vertically.

how strong is the adhesive tape? with heat, will it stay for a long time?

I haven't had one fail yet. Taking them off one raspberry pi 3b+ I was worried it would damage the chip. So the adhesive is pretty strong.

Does this heat sink work on google fiber multi-gig router sfp on 10g port? it is very hot to touch (fiber to 10g ethernet port)

A heat sink should work but I would make sure the case has proper air slow. Get all wires ried for proper.

How hard is it to remove these if needed to?

Unsure. Shouldn't be too hard. Could tear it off pretty cleanly with fingers and use a solvent (isopropyl alcohol or acetone maybe) to squeaky clean the residual adhesive. It's not a super adhesive but fairly tacky. I pulled it off cleanly to rearrange it without problem but with heat and time that could change.

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100 PCS (8 Different Sizes) Heatsink Kit for Raspberry Pi A B+ 4/5 | With Conductive Adhesive Tape,Aluminum Heat Sinks Cooler and Copper Heat Sink for Raspberry Pi A B B+ 2/3/4/5

Product ID: 188763813

Details

Brand
Pastall
Cooler Heatsink Compatibility
Raspberry Pi
Cooler Heatsink Material
Copper
Item Weight
0.14 kg
Product Dimensions
0.55"L x x

⚡High-performance thermal tape

🧊100 PCS multi-size kit

🛠️Aluminum + copper combo

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Description

❄️ Stay cool, stay ahead — your Raspberry Pi’s new best friend!

STICK CHILL - Premium conductive adhesive tape ensures effortless installation with lasting thermal performance.
DUAL METAL POWER - Aluminum for lightweight cooling plus copper for superior heat conduction—best of both worlds.
DIY PROS DREAM KIT - Bulk pack designed for makers, tinkerers, and pros who demand reliable, silent cooling solutions.
VERSATILE COMPATIBILITY - Perfect for Raspberry Pi 2/3/4/5 and a wide range of electronics from CPUs to VRMs.
ULTIMATE COOLING ARSENAL - 100 precision-cut heatsinks in 8 sizes to fit every Raspberry Pi model and more.

This 100-piece heatsink kit by Pastall includes 80 aluminum and 20 copper heatsinks in 8 sizes, equipped with high-viscosity thermal adhesive tape. Engineered for Raspberry Pi models A, B, B+, 2, 3, 4, and 5, it delivers efficient heat dissipation compatible with most cases and extends to cooling various electronic components, making it an essential upgrade for DIY electronics enthusiasts and professionals alike.

Specifications

ASIN	B082RWXFR2
Best Sellers Rank	#8 in Heatsinks
Brand Name	Pastall
Cooler Heatsink Compatibility	Raspberry Pi, Single-board Computers, Electronic Components
Cooler Heatsink Material	Copper
Customer Reviews	4.6 4.6 out of 5 stars (790)
Item Dimensions L x W x H	0.55"L x 0.55"W x 0.27"H
Item Weight	0.14 kg
Manufacturer	Pastall
Model	PT2019080503
Mounting Type	Panel Mount
Number of Items	100
Part Number	PT2019080503
UPC	779283239918

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₩35985

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In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

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TrustScore 4.5 | 7,300+ reviews

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