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Geekworm 11mm Thickness Embedded Heatsink (P165-B) for Raspberry Pi 4, Armor Aluminum Radiator Compatible with Raspberry Pi 4 Model B Computer and Pi 4 Expansion Board Support POE Extension
Geekworm

Geekworm 11mm Thickness Embedded Heatsink (P165-B) for Raspberry Pi 4

Bottom line: The Geekworm 11mm Thickness Embedded Heatsink for Raspberry Pi 4 ($7.50 on Amazon as of 2026-10-22 10:29 UTC): 11mm aluminum block covers CPU, RAM and other Pi 4 chips at a 0mm theoretical gap; main trade-off: thermal grease is required for real contact and is not included in the box.

$7.50

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Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-22. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 11mm aluminum block covers CPU, RAM and other Pi 4 chips at a 0mm theoretical gap
  • ✓ Fits every Raspberry Pi 4 Model B variant: 1GB, 2GB, 4GB and 8GB
  • ✓ Cutout reserves the Pi 4 PoE header so PoE HAT wiring still connects
  • ✓ Accepts an optional 30mm 3010 or 3007 fan when passive cooling runs short

Cons

  • ✗ Thermal grease is required for real contact and is not included in the box
  • ✗ Only 4 M2.5x5+5mm spacers ship with it; other HATs need standoffs you buy separately
  • ✗ 11mm stack height blocks slim cases and low-clearance enclosures
  • ✗ Raspberry Pi 4 only, so it will not carry over to a Pi 5 upgrade

Manufacturer description

About this item Compatibility: Compatible with Raspberry Pi 4 Model B 1GB/2GB/4GB/8GB, embedded heatsink with 11mm thickness; Model: P165-B Supports to cooling down the Raspberry Pi 4 board with Pi 4 expansion board(reserve the PoE port of Pi 4); Compatible with Raspberry Pi 4 expansion board to slove the raspberry pi 4 overheat problem, BUT you will need to prepare the proper standoffs or screws to use the P165-B with other expansion board Recommend to use CPU thermal conductive grease: The theoretical value of the gap between the heatsink protrusions and the CPU, RAM and other chips of Pi…

SpecPicks Verdict

SpecPicks scored Geekworm 11mm Thickness Embedded Heatsink for Raspberry Pi 4 using a rating × review-volume × price-fit model applied to published specs and reviews across the single-board computers category. Geekworm's single-board computers lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for single-board computers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Compatibility Compatible with Raspberry Pi 4 Model B 1GB/2GB/4GB/8GB, embedded heatsink with 11mm thickness; Model P165-B
  • Supports to cooling down the Raspberry Pi 4 board with Pi 4 expansion board(reserve the PoE port of Pi 4); Compatible with Raspberry Pi 4 expansion board to slove the raspberry pi 4 overheat problem, BUT you will need to prepare the proper standoffs or screws to use the P165-B with other expansion board
  • Recommend to use CPU thermal conductive grease The theoretical value of the gap between the heatsink protrusions and the CPU, RAM and other chips of Pi 4 is 0mm; Strongly recommend to use CPU grease to get better heat dissipation
  • Only equipped with 4pcs M2.5x5+5 mm spacers for the P165-B embedded heatsink, you will need to prepare extra standoffs or screws for Raspberry Pi 4 with other expansion boards
  • Supports the installation of 30mm fan(3010 or 3007 fan); Cooling fan can be added when the heat dissipation of a single aluminum heatsink is not enough, so that all Raspberry Pi 4 heat dissipation problems can be solved

Full Specifications

ASINB08N5VZN8R
BrandGeekworm
Brand NameGeekworm
CPU SocketBroadcom BCM2711
Item Weight1.2 Ounces
ManufacturerGeekworm
Mounting TypePCB Mount
Product Dimensions2.55"L x 2.16"W x 0.43"H
Warranty Description3 months
Cooler Heatsink MaterialAluminum
Item Dimensions L x W x H2.55"L x 2.16"W x 0.43"H
Cooler Heatsink Compatibilityfor Raspberry Pi 4
Full listing titleGeekworm 11mm Thickness Embedded Heatsink (P165-B) for Raspberry Pi 4, Armor Aluminum Radiator Compatible with Raspberry Pi 4 Model B Computer and Pi 4 Expansion Board Support POE Extension

Ready to buy?

Geekworm 11mm Thickness Embedded Heatsink (P165-B) for Raspberry Pi 4, Armor Aluminum Radiator Compatible with Raspberry Pi 4 Model B Computer and Pi 4 Expansion Board Support POE Extension is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $7.50

*Price sourced from Amazon.com. Last updated 2026-10-22. Price and availability subject to change.

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