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Black 18-inch gaming laptop with Mini LED display and angular chassis

MSI

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

SKU CH-8H3G-TKS3N

An 18-inch UHD+ 120Hz Mini LED gaming laptop driven by a 24-core Intel Core Ultra 9-285HX and an RTX 5090 with 24 GB GDDR7, plus 64 GB DDR5 and 16 TB NVMe storage

  • ColorCore Black
  • Operating SystemWindows 11 Home
  • CPUIntel Core Ultra 9-285HX
  • Screen18" UHD+ 120Hz
  • Memory64GB
  • Storage16 TB M.2 PCIe NVMe Gen4 SSD
  • Intel Core Ultra 9 285HX 24-core processor reaches 5.5 GHz turbo for heavy workloads
  • NVIDIA RTX 5090 laptop GPU with 24 GB GDDR7 drives high-frame-rate gaming and creative tasks
  • 18-inch UHD+ Mini LED panel at 120 Hz delivers 3840 x 2400 detail for immersive visuals
  • 64 GB DDR5 5600 MHz dual-channel memory and 16 TB PCIe 4.0 NVMe storage handle large projects fast
  • Gelid GC Extreme thermal compound on CPU and GPU lowers temperatures to sustain performance

18-inch UHD+ Mini LED mobile workstation

The MSI Raider 18 HX AI A2XWJG-841US is an 18-inch gaming laptop built around a 3840 x 2400 120Hz Mini LED panel. It targets professionals and enthusiasts who need desktop-class compute and graphics in a single chassis. The system ships with Windows 11 Home and a Core Black finish.

Gelid GC Extreme thermal upgrade over stock

HIDevolution replaces the factory thermal interface material with Gelid GC Extreme on the CPU and GPU. The modification lowers sustained temperatures and reduces throttling during extended compute or rendering workloads. The jump is worth it when sessions run long enough for heat to saturate the stock solution.

24-core Ultra 9 285HX with RTX 5090 under load

The 24-core Intel Core Ultra 9 285HX reaches a 5.5 GHz max turbo frequency alongside the NVIDIA GeForce RTX 5090 Laptop GPU with 24 GB GDDR7. Dual-channel DDR5 5600 memory and 16 TB of PCIe 4.0 NVMe storage keep data flowing during prolonged heavy use. The 7.94 lb chassis dissipates heat across a 15.91 x 12.09 x 1.26 inch frame.

Highlights

  • Intel Core Ultra 9 285HX 24-core processor reaches 5.5 GHz turbo for heavy workloads
  • NVIDIA RTX 5090 laptop GPU with 24 GB GDDR7 drives high-frame-rate gaming and creative tasks
  • 18-inch UHD+ Mini LED panel at 120 Hz delivers 3840 x 2400 detail for immersive visuals
  • 64 GB DDR5 5600 MHz dual-channel memory and 16 TB PCIe 4.0 NVMe storage handle large projects fast
  • Gelid GC Extreme thermal compound on CPU and GPU lowers temperatures to sustain performance

Specifications

BrandMSI
SeriesRaider 18 HX AI
ModelRaider 18 HX AI A2XWJG-841US
Part NumberMS-RAIDER18HXA2841-HID10
ColorCore Black
Operating SystemWindows 11 Home
CPUIntel Core Ultra 9-285HX
Screen18" UHD+ 120Hz
Memory64GB
Storage16 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
SSD16 TB
HDDNo
Storage Spec2 x 8 TB M.2 PCIe 4.0 x4 NVMe SSD
Memory Speed5600MHz (Speeds subject to system capability)
Memory Spec2 x 32 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

What chassis clearance does the 15.91" x 12.09" x 1.26" frame need inside a backpack or sleeve?

The laptop measures 15.91 inches wide, 12.09 inches deep and 1.26 inches thick, so choose a sleeve or compartment rated for at least an 18-inch class device with a little extra depth for the power brick.

Which screws and clips must be removed to reach the two M.2 slots holding the 16 TB of storage?

Remove all bottom-case screws, then gently pry the panel starting at the front edge; the two M.2 4.0 x4 slots sit side-by-side under a single thermal pad — lift the pad once, swap drives, then reseat the pad before closing.

When should the Gelid GC Extreme compound on the CPU and GPU be reapplied?

Re-paste with Gelid GC Extreme if sustained core temperatures climb more than 10 °C above your baseline after a year of heavy loads, or whenever the heatsink is removed for a fan cleaning or SSD upgrade.

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