Equipped with Intel Core Ultra 9, up to NVIDIA RTX 5090 graphics, and a blistering 4K 200Hz G-SYNC display, the new MAINGEAR ULTIMA 18 is a full-featured desktop replacement. Developed in collaboration with CLEVO, ULTIMA 18 offers desktop-level specs, like a 4K@200Hz G-SYNC display, Intel Core Ultra 9 275HX processor, and up to an NVIDIA GeForce RTX 5090 mobile GPU, all inside a sleek chassis outfitted with metal lid and palm rest. Here’s what the press release had to say.
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MAINGEAR ULTIMA 18
Designed for elite gamers and creators who demand top-tier performance without compromise, ULTIMA 18 is MAINGEAR’s first laptop to support modern dual-channel DDR5 memory, PCIe Gen5 SSDs, dual Thunderbolt™ 5 ports, and Wi-Fi 7. Whether plugged in or on the move, this system delivers unprecedented power, quiet efficiency, and immersive visuals for the most demanding workloads and graphics-rich game titles.
4K Gaming
Featuring a jaw-dropping 18.0-inch 4K (3840 x 2400) 200Hz display with 100% DCI-P3 color gamut, G-SYNC support, and a 16:10 aspect ratio, ULTIMA 18 offers both vibrant color and lightning-fast refresh rates for fluid gameplay and pro-grade content creation. With a display response time of less than 7ms, every action-packed gaming scene is sharp, fast, and tear-free.
Specs Built to Win
Inside, ULTIMA 18 is powered by the new Intel Core Ultra 9 275HX processor (24 cores, 5.4GHz Turbo), paired with up to NVIDIA RTX 5090 or 5080 mobile GPUs (up to 24GB GDDR7, 175W TGP). Combined with support for up to 192GB of DDR5 memory and four M.2 NVMe SSDs, including PCIe Gen5 from Samsung, ULTIMA 18 crushes load times, multitasks effortlessly, and keeps up with the most demanding creative and gaming workflows.
System Control
Like all MAINGEAR systems, the Ultimate is free from any OS-choking bloatware. It is also equipped with Control Center, an application that allows users to quickly swap performance modes, customize per-key RGB lighting, adjust fan profiles, and assign macros. NVIDIA Advanced Optimus seamlessly switches between integrated and discrete graphics, maximizing battery life without sacrificing performance.
Desktop Class I/O
With rear- and side-facing ports, gamers can plug in and expand with dual Thunderbolt 5 ports, HDMI 2.1, USB-A with Power Delivery-out, microSD reader, dual 2.5Gb LAN, and next-gen Wi-Fi 7. Whether docked at a battle station or streaming wirelessly, ULTIMA 18 is future-ready with robust, high-speed connectivity options, including the latest AR and VR headsets.
Key Specs
- Processor: Intel Core Ultra 9 275HX (24 cores, 5.4GHz Turbo Boost)
- Graphics: Up to NVIDIA GeForce RTX 5090 Mobile GPU (24GB GDDR7) ● Display: 18.0” 4K (3840×2400) 200Hz, G-SYNC, 100% DCI-P3, <7ms
- Memory: Up to 192GB DDR5 (4x48GB)
- Storage: Up to 4x M.2 SSDs (1x Gen5x4, 3x Gen4x4)
- Connectivity: 2x Thunderbolt 5, Wi-Fi 7, 2x 2.5Gb LAN, HDMI 2.1, microSD, 2x USB-A (1x with PD), Bluetooth 5.4
- Battery: 98WHr, 8-cell Lithium Polymer ● Weight: 8.8 lbs. (3.99kg)
- Audio: 5 Speakers including tweeters and Subwoofer + Sound Blaster Studio Pro 2 ● Camera: 5.0MP FHD Hello Camera with Presence Sensor and Privacy Cover
- Software: Control Center, NVIDIA Advanced Optimus, Zero-Bloatware Windows 11 Installation

Pricing and Availability
Every ULTIMA 18 is backed by MAINGEAR’s industry-leading to build quality, meticulous component selection, and award-winning lifetime support. Starting at $3,599, ULTIMA 18 is available now at www.maingear.com in pre-configured and customizable variations. Pre-configured models can be ordered with MAINGEAR’s “Boost” option, which doubles the RAM and SSD capacity.
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