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Midnight Black 18 inch gaming laptop with Mini LED display

MSI

MSI Stealth A18 AI+ A3XWJG 18" UHD+ 120Hz Mini LED Ryzen AI 9 HX 370 RTX 5090 96GB 8TB gaming

SKU CH-WTMV-1XA2F

An 18 inch UHD+ 120Hz Mini LED laptop with a 12 core Ryzen AI 9 HX 370, RTX 5090 24GB GDDR7, 96GB DDR5 and 8TB NVMe

  • Screen size18.0 in (45.7 cm)
  • ProcessorAMD Ryzen AI 300 Series
  • Graphics processorNVIDIA GeForce RTX 5090 Laptop GPU
  • Memory size96 GB
  • Storage drive8 TB M.2 PCIe 4.0 x4 NVMe SSD
  • Display resolution3840 × 2400

CPU Name AMD Ryzen AI 9 HX 370

Size 18.0"

Operating System Windows 11 Pro

GPU NVIDIA GeForce RTX 5090 Laptop GPU

Memory 96GB

SSD 8 TB

  • 18-inch UHD+ Mini LED display at 120 Hz for sharp, fluid visuals
  • 12-core Ryzen AI 9 HX 370 reaching 5.1 GHz turbo for heavy multitasking
  • RTX 5090 with 24 GB GDDR7 drives demanding creative and gaming workloads
  • 96 GB DDR5 5600 MHz memory keeps large projects responsive
  • 8 TB PCIe 4.0 NVMe SSD provides vast, fast storage

Stealth A18 AI+ 18" Mini LED

The Stealth A18 AI+ A3XWJG is an 18-inch gaming laptop built around a 12-core AMD Ryzen AI 9 HX 370 processor and an NVIDIA GeForce RTX 5090 Laptop GPU with 24 GB GDDR7 video memory. It ships with 96 GB DDR5 memory in dual-channel configuration and an 8 TB PCIe 4.0 x4 NVMe SSD, running Windows 11 Pro. The UHD+ Mini LED panel delivers a 3840 x 2400 resolution at 120 Hz.

Compatibility checklist before ordering

Verify that your existing peripherals and docks match the laptop's available I/O and that your workspace accommodates the 15.74" x 11.41" x 0.94" chassis weighing 6.39 lbs. Confirm your power infrastructure can support the supplied adapter for a 5.1 GHz max turbo CPU and RTX 5090 graphics subsystem. Ensure any external displays can accept the native 3840 x 2400 signal over the provided video outputs.

Sustained-load thermal behaviour

HIDevolution applies Gelid GC Extreme thermal interface material on both CPU and GPU during assembly to lower peak temperatures under continuous load. The upgrade targets reduced throttling during extended CPU and GPU intensive tasks, helping the 12-core processor and RTX 5090 maintain higher clocks for longer periods. A full burn-in stress test is performed before shipment to validate thermal stability.

How it compares

Measured against everything we stock in Gaming Laptop Computers, at today’s prices. Recalculated every night.

Price $6,140.99
Pricier than about 92% of the 5,382 comparable items (median $1,978.99).
Screen size 18.0 in (45.7 cm)
Higher than about 90% of the 5,361 comparable items (median 16 in).
Refresh frequency 120 Hz
Lower than about 90% of the 2,443 comparable items (median 165 Hz).

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Specifications

Product
Brand nameMSI
Product lineMSI Stealth A18 AI+
Model nameStealth A18 AI+ A3XWJG-006US
Part numberMS-STEALTHA18AI3006-HID6P
Product colorMidnight Black
Design styleStandard
Product typeGaming
Recommended useConsumer
Processor
ProcessorAMD Ryzen AI 9 HX 370
Processor modelAMD Ryzen AI 9 HX 370
CPU cores12-core Processor
Turbo clock speed5.1 GHz
L3 cache size36 MB
Memory
Memory size96 GB
RAM type and speed5600 MHz (Speeds subject to system capability)
Memory configuration2 × 48 GB
Maximum supported memory128 GB
Storage
Storage drive8 TB M.2 PCIe 4.0 x4 NVMe SSD
SSD storage8 TB
Hard driveNo
Storage configuration8 TB M.2 PCIe 4.0 x4 NVMe SSD
Display
Screen size18.0 in (45.7 cm)
Display resolution3840 × 2400
Refresh frequency120 Hz
Touch inputNon-Touch Screen
Display18 in UHD+ 120 Hz
Display formatUHD+
Screen featuresMini LED HDR
Graphics
Graphics processorNVIDIA GeForce RTX 5090 Laptop GPU
Video RAM24 GB
GPU modelNVIDIA® GeForce RTX™ 5090 Laptop GPU
Audio & video
Web cameraIR FHD w/shutter
Connectivity
NetworkingLAN and WLAN
LAN connection2.5GbE Lan
Wi-Fi802.11 be Wi-Fi 7
Bluetooth supportBT 5.4
Ports & slots
USB ports2x Type-A USB3.2 Gen2
Thunderbolt ports2x Type-C (USB4® / DisplayPort™/ Power Delivery 3.1/ Thunderbolt™ 4 compatible)
HDMI ports1x HDMI™ 2.1 (8K @ 60 Hz / 4K @ 120 Hz)
Audio jacks1x Mic-in/Headphone-out Combo Jack
Memory card readerSD Express Card Reader
Power
Power adapter280 W
Battery pack4 cell (90Whr) Li-Ion
Size & build
Overall dimensions15.74 in × 11.41 in × 0.94 in
Product weight6.39 lb (2.9 kg)
Software
Operating systemWindows 11 Pro
More details
Pointing deviceMulti Touch
KeyboardSteelSeries per-Key RGB with Anti-Ghost key (99 Key)

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Questions about this item

Does the 18 inch UHD+ 120Hz Mini LED panel ship with the laptop or must I buy it separately?

The 18 inch UHD+ 120Hz Mini LED display is built into the chassis and ships with the system.

Which memory kit should I select for the Ryzen AI 9 HX 370 and RTX 5090 combination?

The unit already includes 96 GB of DDR5 5600MHz memory installed as two 48 GB modules in dual channel.

What does the 5.1 GHz turbo figure mean when the RTX 5090 24GB GDDR7 is under load?

The processor can reach 5.1 GHz max turbo while Gelid GC Extreme thermal compound helps sustain clocks during heavy GPU workloads.

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