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Billet Labs

UK-based PC cooling startup founded in 2022, specializing in CNC-machined water-cooling components for small form factor builds.

Last updated September 26, 2026

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Overview

Billet Labs is a British startup company that designs and sells computer water-cooling products, with a focus on the small form factor (SFF) PC market. Founded in 2022 by long-time school friends Felix Ure and Sam Wood, the company is based in London and manufactures its products in the UK. Sam Wood is a computer scientist with experience in tech start-ups, while Felix Ure is an inventor and engineer with a background in high-end machined metal products. Together they aim to reinvent PC building by moving away from outdated industry standards and creating modular, future-proof, and intercompatible water-cooling solutions. The company's flagship product is the MonoBlock, a full-copper water block that cools both the CPU and GPU simultaneously, designed specifically for small form factor builds. It is compatible with Intel LGA1700 and AMD AM5/AM4 sockets, and fits both NVIDIA 3090 Ti Founders Edition and 4090 Founders Edition graphics cards. The MonoBlock is priced at $945.00 USD and includes a motherboard mounting bracket, pre-cut thermal pads, thermal paste, fittings, standoffs, a full copper GPU backplate, and spare gaskets. Billet Labs emphasizes in-house design and engineering, CNC machining in the UK, and hand-finishing and hand-assembly at their London workshop. Billet Labs positions itself as an innovator in PC cooling, targeting enthusiasts who build compact, high-performance systems. The company's stated mission is to revolutionize the water-cooled small form factor market while maintaining modularity and compatibility. Their products are sold directly through their official website, with options for pre-order and customization of inlet and outlet pipes upon request. As a private startup, Billet Labs operates independently and has gained attention in the PC enthusiast community for its unique integrated cooling approach.

History

Billet Labs was founded in 2022 by Felix Ure and Sam Wood, two long-time school friends. Sam Wood brought a background in computer science and experience in tech start-ups, while Felix Ure contributed expertise as an inventor and engineer with a focus on high-end machined metal products. The company is headquartered in London, United Kingdom, and operates its own workshop where products are designed, engineered, CNC machined, hand-finished, hand-assembled, and dispatched. From its inception, Billet Labs set out to challenge traditional PC building standards, which the founders viewed as outdated and needlessly complex. Their goal was to reinvent PC building, particularly in the water-cooled small form factor (SFF) market, by creating components that maintain modularity, future-proofing, and intercompatibility. The company's first major product, the MonoBlock, is a full-copper water block that cools both the CPU and GPU, designed for compact builds. It supports Intel LGA1700 and AMD AM5/AM4 sockets and is compatible with NVIDIA 3090 Ti Founders Edition and 4090 Founders Edition graphics cards. Billet Labs sells its products directly through its official website, offering pre-orders and customizations such as adjustable inlet and outlet pipe lengths or bends. The MonoBlock is priced at $945.00 USD and includes a comprehensive mounting kit. The company continues to operate as a private startup, with all design and manufacturing carried out in the UK.

  • 2022

    Billet Labs founded by Felix Ure and Sam Wood.

  • Launch of MonoBlock, a full-copper CPU/GPU integrated water block for small form factor builds.

Products and positioning

Innovators in PC cooling, focused on revolutionizing the water-cooled small form factor market with modular, future-proof, and intercompatible products designed and manufactured in the UK.

  • MonoBlock

    A full copper water block that cools both GPU and CPU, ideal for small form factor builds. Compatible with Intel LGA1700 and AMD AM5/AM4 sockets, and fits NVIDIA 3090 Ti FE and 4090 FE. Price: $945.00 USD.

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