Custom Ultima 18 - MAINGEAR Custom Ultima 18 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR Ultima 18 | RTX 5090 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR Ultima 18 | RTX 5090 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR Ultima 18 | RTX 5090 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR Ultima 18 | RTX 5090 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR Ultima 18 | RTX 5090 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR Ultima 18 | RTX 5090 - MAINGEAR
Custom Ultima 18 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR
Ultima 18 | RTX 5090 - MAINGEAR

MAINGEAR

Ultima 18 | RTX 5090

$4,299
Shipping calculated at checkout.

The MAINGEAR Ultima 18 is your full loadout in a laptop. Crafted for high-stakes gaming and heavy creative demands, it delivers pro-tier performance with an 18-inch 4K 200Hz display with G-Sync and spec-loaded internals. No compromises, just pure power in a portable package.

Double your RAM and storage with the Boost button for even more performance.

+ Civilization VII & Dying Light: The Beast Intel Bundle (While Supplies Last) 

  • Graphics: NVIDIA GeForce RTX 5090 Mobile
  • Processor: Intel Core Ultra 9 275HX
  • Storage: 2TB T-Force A440 (Boost to 4TB)
  • Memory: 32GB DDR5 4800MT/s  (Boost to 64GB 4800MT/s)
  • Operating System: Windows 11 Pro

See detailed specs >

 

Customize this PC >

Version: Standard

Pickup available at MAINGEAR HQ

Usually ready in 5+ days

  • Estimated to ship in 1-2 business days
  • Free shipping in United States (Excludes AK & HI)
  • Lifetime support with 1-year limited warranty
Version: Standard
CHASSIS

MAINGEAR Ultima 18
Metal Exterior and Palm Rest

GRAPHICS

NVIDIA RTX 5090 Mobile
24GB GDDR7
(175W TGP)

PROCESSOR

Intel Core Ultra 9 275HX
24 Cores - 24 Threads
Boosts to 5.4 GHz

DISPLAY

18.0”, 4K (3840 x 2400p), 16:10
200Hz, DCI-P3 100%, G-Sync,
<7ms, 400 Nits

MEMORY

32GB DDR5 4800MT/s (2x16GB)
Boost to 64GB DDR5 4800MT/s (2x32GB)

STORAGE

2TB T-Force A440 Gen4 M.2 NVMe SSD
Boost to 4TB Gen4 M.2 NVMe SSD

OPERATING SYSTEM

Windows 11 Pro

WIRELESS CONNECTIVITY

WiFi 7
Bluetooth 5.4

KEYBOARD

Full-Size Chiclet
Chiclet Membrane
Per-Key RGB Backlit
1.5mm of Key Travel

TOUCHPAD

Large Touchpad with Low Friction Finish

CAMERA

5.0M Dual Sensor FHD Hello Camera w/ Presence Sensor and Privacy Cover

AUDIO

2x Main Speakers,
2x Tweeters,
1x Subwoofer
Powered by Sound Blaster Studio Pro 2

PORTS

1x Thunderbolt™ 5 Port with Power Delivery-in 
1x Thunderbolt™ 5 Port 
1x USB-A 10Gbps with Power Delivery-out 
1x USB-A 10Gbps 
1x HDMI-out Port (version 2.1)  
1x 3.5mm Audio Combo Jack (Headphone / Microphone) 
1x microSD Card Reader 
1x Kensington Lock 
1x DC-in Jack 

BATTERY

98 WHr
8-cell Lithium Polymer

DIMENSIONS

402-410mm (W) x 319mm (D) x 28-36mm (H)

15.83-16.14in (W) x 12.56in (D) x 1.10-1.42in (H)

WEIGHT

3.99Kg, 8.8lbs