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Black 18 inch gaming laptop with Mini LED display and RTX 5090 graphics

MSI

MSI Raider 18 HX AI A2XWJG-841US 18" UHD+ 120Hz Mini LED, Ultra 9-285HX, RTX 5090

SKU CH-S1V2-RZA13

An 18" UHD+ 120Hz Mini LED gaming laptop with an Intel Core Ultra 9 285HX 24-core processor, 128 GB DDR5 memory, 2 TB NVMe storage and an RTX 5090 GPU with 24 GB GDDR7

  • ColorCore Black
  • Operating SystemWindows 11 Pro
  • CPUIntel Core Ultra 9-285HX
  • Screen18" UHD+ 120Hz
  • Memory128GB
  • Storage2 TB M.2 PCIe NVMe Gen4 SSD
  • 18 inch UHD+ Mini LED display at 120 Hz for vivid detail
  • Intel Core Ultra 9 285HX 24 core up to 5.5 GHz for heavy workloads
  • NVIDIA GeForce RTX 5090 with 24 GB GDDR7 for top graphics power
  • 128 GB DDR5 5600 dual channel memory for smooth multitasking
  • 2 TB PCIe 4.0 NVMe SSD for fast boot and load times

18" UHD+ Mini LED Display

The 18-inch UHD+ Mini LED panel runs at 120 Hz with a 3840 x 2400 resolution. It targets creators and competitive gamers who need a large, colour-accurate workspace in a single portable chassis. Windows 11 Pro comes pre-installed for immediate productivity.

Sustained Thermal Performance

Gelid GC Extreme thermal compound replaces the stock interface material on both the 24-core Ultra 9 285HX and the RTX 5090 GPU. The upgrade lowers peak temperatures during extended compute or rendering sessions, reducing the likelihood of throttling when all 24 threads hold 5.5 GHz boost clocks. A full burn-in and stress test validates stability before shipment.

Build and Connectivity

The Core Black aluminium chassis measures 15.91 x 12.09 x 1.26 inches and weighs 7.94 lbs. Memory ships as 128 GB of DDR5 5600 MHz in a dual-channel 2 x 64 GB configuration. Storage is a 2 TB PCIe 4.0 x4 NVMe SSD. The RTX 5090 provides 24 GB of GDDR7 video memory for high-resolution assets.

Highlights

  • 18 inch UHD+ Mini LED display at 120 Hz for vivid detail
  • Intel Core Ultra 9 285HX 24 core up to 5.5 GHz for heavy workloads
  • NVIDIA GeForce RTX 5090 with 24 GB GDDR7 for top graphics power
  • 128 GB DDR5 5600 dual channel memory for smooth multitasking
  • 2 TB PCIe 4.0 NVMe SSD for fast boot and load times

Specifications

BrandMSI
SeriesRaider 18 HX AI
ModelRaider 18 HX AI A2XWJG-841US
Part NumberMS-RAIDER18HXA2841-HID17P
ColorCore Black
Operating SystemWindows 11 Pro
CPUIntel Core Ultra 9-285HX
Screen18" UHD+ 120Hz
Memory128GB
Storage2 TB M.2 PCIe NVMe Gen4 SSD
Graphics CardNVIDIA® GeForce RTX™ 5090 Laptop GPU
Video Memory24GB
CommunicationLAN and WLAN
Dimensions (W x D x H)15.91"x 12.09"x 1.26"
Weight7.94 lbs
CPU TypeIntel Core Ultra 9 (Series 2)
Processor NameIntel Core Ultra 9 285HX
Number of Cores24-core (8P+16E) Processor
Turbo FrequencyMax Turbo Frequency 5.5 GHz
CPU L3 Cache36 MB
Screen Size18.0"
TouchscreenNo
Display TypeUHD+
Resolution3840 x 2400
PanelUHD+
Refresh Rate120Hz
Color Gamut100% DCI-P3
Display FeaturesMini LED HDR
GPU/VPUNVIDIA GeForce RTX 5090 Laptop GPU
SSD2 TB
HDDNo
Storage Spec2 TB M.2 PCIe 4.0 x4 NVMe SSD
Memory Speed5600MHz (Speeds subject to system capability)
Memory Spec2 x 64 GB
LANGB LAN (Up to 2.5G)
WLANKiller WiFi 7 BE1750
BluetoothBT 5.4
USB3x USB 3.2 Gen 2
Thunderbolt 32x Thunderbolt™ 5 w DP/PD3.1
HDMI1x HDMI™ v2.1
Audio Ports1x Mic-in/Headphone-out Combo Jack
TouchpadMulti Touch
KeyboardSteelSeries per-Key RGB with Anti-Ghost key (99 Key)
WebcamIR FHD w/shutter
Card ReaderFull size SD UHS-III
StyleStandard
TypeGaming
UsageConsumer
AC Adapter/Charger400W
Battery4 cell (99.9Whr) Li-Ion

Questions about this item

How loud and hot does the Raider 18 HX AI get when the Ultra 9-285HX and RTX 5090 run at full load for hours?

HIDevolution applies Gelid GC Extreme thermal compound on the CPU and GPU during assembly. This lowers peak temperatures and reduces the chance of throttling during sustained workloads.

Which peripherals or docks must I already own to use the 3840 x 2400 120 Hz Mini LED panel and 24 GB GDDR7 graphics?

The laptop includes the display and GPU internally. External monitors connect through the built-in video outputs; no proprietary dock is required for the native screen or the RTX 5090.

Will my existing DDR5 5600 MHz SO-DIMM kits work alongside the factory 2 x 64 GB modules?

The system ships with 128 GB of DDR5 5600 MHz memory in two slots. Adding third-party sticks is possible if they match the same speed and form factor, but the factory configuration already fills both channels.

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