Gaming Desktop

Cutting edge cooling and extreme
gaming performance.

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Behold, the chillest machine in gaming

The OMEN 45L takes cooling way up, with the OMEN CRYO CHAMBER. This patented chamber channels external air to power liquid cooling throughout the case.


  • Up to 4x 120mm RGB or ARGB system fans​ (3 front, 1 rear)​
  • Up to 360mm AIO liquid cooler​
  • Supports Intel Cryo Cooling Gen2 Technology

Beauty, meet beast

The 45L has a case with tempered glass panels, a full-metal frame with toolless entry, and up to 8 distinct lighting zones including 4 aRGB.

Cutting edge cooling meets extreme performance

Define the cutting edge with up to an Intel® Core™ i9 processor1 and up to a NVIDIA GeForce RTX 4090 GPU.​


Up To a NVIDIA® GeForce RTX™ 4090 Graphics deliver the ultimate performance for gamers. With new RT Cores, Tensor Cores, and streaming multiprocessors for the most realistic ray-traced graphics and cutting-edge AI features.

Light the way forward

Adaptation, battle station

Built for extreme performance, easy toolless upgradeability and room for the kitchen sink. The 45L is a one stop, can't stop, shop for DIY performance mastery.

Adaptation, battle station

Built for extreme performance, easy toolless upgradeability and room for the kitchen sink. The 45L is a one stop, can't stop, shop for DIY performance mastery.

  • RGB for everyone

    Up to 8 distinct lighting zones including 4 aRGB, means limitless colour customisation and possibly a party at your place later.

  • Crafted for expansion

    Tool-less access to components, up to 4x 120mm system fans, 7 available storage upgrade ports, with industry-standard upgrades throughout.​

  • OMEN gaming hub

    From intelligent overclocking, SW-based fan control, BIOS access and RAM frequency, dial in every performance detail. We obsess so you can progress.

OMEN Gaming Hub

OMEN Gaming Hub is your one-stop shop to elevating your play. From getting rewards just by gaming, to controlling every little performance and lighting option of your machine, the list goes on. Every game, every play, every moment is now in your control.

  • Light studio

    Coordinate your colour scheme. Now you can easily sync your lighting effects across your OMEN devices. From spatially-aware lighting animations to interactive effects, the personalisation possibilities are endless.3

  • Performance control

    We don’t always need our PC to be ready for a full blown war. Choose between performance modes to match it up with whatever’s coming its way.

  • System vitals

    No one wants to flatline during gameplay. Keep an eye on all the vitals with a dashboard that tracks every key metric in real time. Scan utilisation, temperature of your CPU, GPU, and memory.

  • Network booster

    Lagging out during a team fight is the worst. Network Booster bumps your game up to VIP status and prioritises it over everything else while Dual Force functionality sends gaming traffic over the fastest connection for the fastest speeds.

Serious output

Top outputs:
2x SuperSpeed USB Type-A 5Gbps signalling rate
Headphone/Microphone Combo​
​Microphone Jack


Rear outputs:
2x SuperSpeed USB Type-A 5Gbps signalling rate​
​Headphone/Microphone Combo​
​Microphone Jack


Ultrabook, Celeron, Celeron Inside, Core Inside, Intel, Intel Logo, Intel Atom, Intel Atom Inside, Intel Core, Intel Inside, Intel Inside Logo, Intel vPro, Itanium, Itanium Inside, Pentium, Pentium Inside, vPro Inside, Xeon, Xeon Phi, Xeon Inside, and Intel Optane are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other countries.

Product images are for illustration purposes only, product availability and colours may vary by country.

  1. This device has been engineered for optimal performance. Upgrading PC may affect warranty coverage.
  2. Multi-core is designed to improve performance of certain software products. Not all customers or software applications will necessarily benefit from use of this technology. Performance and clock frequency will vary depending on application workload and your hardware and software configurations. Intel’s numbering, branding and/or naming is not a measurement of higher performance.

© HP Development Company, L.P. The Information contained herein is subject to change without notice. Warranties for HP products and services are set out in the express warranty statements accompanying such products and services. In addition, our products and services come with guarantees that cannot be excluded under the Australian Consumer Law. Subject to the foregoing, nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.