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Core Black 18 inch gaming laptop with Mini LED display, angular chassis and per key RGB lighting

MSI

MSI Raider 18 HX AI A2XWJG-841US 18" UHD+ 120Hz Mini LED Ultra 9-285HX RTX 5090 96GB DDR5 4TB

SKU CH-TWJN-PFZMN

18-inch UHD+ 120Hz Mini LED gaming laptop with Intel Core Ultra 9 285HX 24-core CPU, RTX 5090 24GB GDDR7 GPU, 96GB DDR5 5600MHz memory and 4TB NVMe Gen4 storage

  • ColorCore Black
  • Operating SystemWindows 11 Home
  • CPUIntel Core Ultra 9-285HX
  • Screen18" UHD+ 120Hz
  • Memory96GB
  • Storage4 TB M.2 PCIe NVMe Gen4 SSD
  • Intel Core Ultra 9 285HX 24-core processor reaches 5.5 GHz turbo for heavy workloads
  • NVIDIA GeForce RTX 5090 with 24 GB GDDR7 drives high-frame-rate gaming and creative tasks
  • 18-inch UHD+ Mini LED panel at 120 Hz delivers sharp detail and smooth motion
  • 96 GB DDR5 5600 MHz memory in dual channel handles large datasets and multitasking
  • 4 TB PCIe 4.0 NVMe SSD across two 2 TB drives provides fast boot and load times

Raider 18 HX AI A2XWJG-841US

This 18-inch gaming laptop pairs an Intel Core Ultra 9-285HX 24-core processor with an NVIDIA GeForce RTX 5090 Laptop GPU carrying 24 GB GDDR7 memory. The 120 Hz UHD+ Mini LED panel delivers 3840 x 2400 resolution for detailed visuals. It ships with Windows 11 Home installed.

Gelid GC Extreme thermal compound

The builder applies Gelid GC Extreme thermal interface material to both the CPU and GPU, replacing the stock paste to lower peak temperatures under sustained load. This change reduces the likelihood of thermal throttling during extended gaming or rendering sessions, helping the hardware maintain higher clocks for longer periods.

96 GB DDR5 5600 MHz and 4 TB NVMe Gen4 storage

Dual-channel 96 GB memory (2 x 48 GB) provides headroom for large datasets, virtual machines, and heavy multitasking without paging. The 4 TB PCIe 4.0 x4 NVMe array (2 x 2 TB) offers fast boot and load times for sizable game libraries and project files; capacity limits appear only when workloads exceed the installed 96 GB RAM or the 4 TB volume.

Highlights

  • Intel Core Ultra 9 285HX 24-core processor reaches 5.5 GHz turbo for heavy workloads
  • NVIDIA GeForce RTX 5090 with 24 GB GDDR7 drives high-frame-rate gaming and creative tasks
  • 18-inch UHD+ Mini LED panel at 120 Hz delivers sharp detail and smooth motion
  • 96 GB DDR5 5600 MHz memory in dual channel handles large datasets and multitasking
  • 4 TB PCIe 4.0 NVMe SSD across two 2 TB drives provides fast boot and load times

Specifications

BrandMSI
SeriesRaider 18 HX AI
ModelRaider 18 HX AI A2XWJG-841US
Part NumberMS-RAIDER18HXA2841-HID13
ColorCore Black
Operating SystemWindows 11 Home
CPUIntel Core Ultra 9-285HX
Screen18" UHD+ 120Hz
Memory96GB
Storage4 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
SSD4 TB
HDDNo
Storage Spec2x 2 TB M.2 PCIe 4.0 x4 NVMe SSD
Memory Speed5600MHz (Speeds subject to system capability)
Memory Spec2 x 48 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 often should the Gelid GC Extreme thermal interface material on the CPU and GPU be checked or reapplied?

The Gelid GC Extreme TIM applied during the build-to-order process is a long-life compound; under normal gaming or workstation loads it typically does not need replacement for several years.

Which component hits its thermal or power ceiling first during extended all-core and GPU load?

The 24-core Ultra 9-285HX and RTX 5090 share a vapor-chamber cooler; sustained 5.5 GHz turbo on all P-cores usually triggers CPU power limiting before the GPU reaches its 24 GB GDDR7 thermal threshold.

What are the typical fan noise levels and surface temperatures when the system runs at full load for hours?

Under continuous load the dual-fan cooler keeps keyboard-deck temperatures in the low-40 °C range while fan noise settles around 48–50 dBA, a level comparable to other 18-inch desktop-replacement laptops.

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