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Midnight Black 18-inch gaming laptop with thin profile

MSI

MSI Stealth A18 AI+ A3XWIG-009US 18" UHD+ 120Hz Mini LED Ryzen AI 9 HX 370 RTX 5080 64 GB

SKU CH-6R31-47CW4

An 18-inch UHD+ 120 Hz Mini LED laptop driven by a 12-core Ryzen AI 9 HX 370 and RTX 5080 with 16 GB GDDR7, 64 GB DDR5 and a 4 TB NVMe SSD

  • ColorMidnight Black
  • Operating SystemWindows 11 Pro
  • CPUAMD Ryzen AI 9 HX 370
  • Screen18" UHD+ 120Hz
  • Memory64GB
  • Storage4 TB M.2 PCIe 4.0 x4 NVMe SSD

CPU Name AMD Ryzen AI 9 HX 370

Size 18.0"

  • 16.0"
  • 18.0"

OS Windows 11 Pro

GPU NVIDIA GeForce RTX 5080 Laptop GPU

Memory 64GB

SSD 4 TB

取り消し線の付いたバージョンは存在しますが、こちらでは取り扱っていません。

  • 18-inch UHD+ Mini LED at 120 Hz for sharp motion
  • Ryzen AI 9 HX 370 12-core up to 5.1 GHz for heavy workloads
  • RTX 5080 with 16 GB GDDR7 for high-frame-rate gaming
  • 64 GB DDR5 5600 MHz dual-channel for smooth multitasking
  • 4 TB PCIe 4.0 NVMe SSD for fast load times

18-inch UHD+ Mini LED display

The 18-inch UHD+ panel delivers a 3840 by 2400 resolution at 120 Hz using Mini LED technology. It targets creators and gamers who need high pixel density and fast refresh in a single chassis. The system ships with Windows 11 Pro installed.

Gelid GC Extreme thermal compound

HIDevolution applies Gelid GC Extreme on the CPU and GPU to lower core temperatures under load. The Ryzen AI 9 HX 370 12-core processor reaches a 5.1 GHz max turbo frequency within a 0.94-inch thick profile. The RTX 5080 laptop GPU with 16 GB GDDR7 shares the same thermal solution.

4 TB PCIe 4.0 NVMe SSD and 64 GB DDR5

The build includes a 4 TB M.2 PCIe 4.0 x4 NVMe SSD for rapid boot and load times. Memory consists of two 32 GB DDR5 5600 MHz modules running in dual channel. HIDevolution performs full quality control including BIOS updates, stress testing and physical inspection before shipment.

特長

  • 18-inch UHD+ Mini LED at 120 Hz for sharp motion
  • Ryzen AI 9 HX 370 12-core up to 5.1 GHz for heavy workloads
  • RTX 5080 with 16 GB GDDR7 for high-frame-rate gaming
  • 64 GB DDR5 5600 MHz dual-channel for smooth multitasking
  • 4 TB PCIe 4.0 NVMe SSD for fast load times

仕様

BrandMSI
SeriesMSI Stealth A18 AI+
ModelStealth A18 AI+ A3XWIG-009US
Part NumberMS-STEALTHA18AI3009-HID2P
ColorMidnight Black
Operating SystemWindows 11 Pro
CPUAMD Ryzen AI 9 HX 370
Screen18" UHD+ 120Hz
Memory64GB
Storage4 TB M.2 PCIe 4.0 x4 NVMe SSD
Graphics CardNVIDIA® GeForce RTX™ 5080 Laptop GPU
Video Memory16GB
CommunicationLAN and WLAN
Dimensions (W x D x H)15.74" x 11.41" x 0.94"
Weight6.39 lbs
CPU TypeAMD Ryzen AI 300 Series
Processor NameAMD Ryzen AI 9 HX 370
Number of Cores12-core Processor
Turbo FrequencyMax Turbo Frequency 5.1 GHz
CPU L3 Cache36 MB
Screen Size18.0"
TouchscreenNon-Touch Screen
Display TypeUHD+
Resolution3840 x 2400
Refresh Rate120Hz
Display FeaturesMini LED HDR
GPU/VPUNVIDIA GeForce RTX 5080 Laptop GPU
SSD4TB
HDDNo
Storage Spec4 TB M.2 PCIe 4.0 x4 NVMe SSD
Memory Speed5600MHz (Speeds subject to system capability)
Memory Spec2 x 32 GB
Max Memory Supported128GB
LAN2.5GbE Lan
WLAN802.11 be Wi-Fi 7
BluetoothBT 5.4
USB2x Type-A USB3.2 Gen2
Thunderbolt2x Type-C (USB4® / DisplayPort™/ Power Delivery 3.1/ Thunderbolt™ 4 compatible)
HDMI1x HDMI™ 2.1 (8K @ 60Hz / 4K @ 120Hz)
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 ReaderSD Express Card Reader
StyleStandard
TypeGaming
UsageConsumer
AC Adapter/Charger280W
Battery4 cell (90Whr) Li-Ion

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この商品に関する質問

How is the Gelid GC Extreme thermal compound applied to the Ryzen AI 9 HX 370 and RTX 5080, and what step do people miss?

The builder applies Gelid GC Extreme between the dies and the heatsink during assembly; the step users miss is skipping the burn-in period that lets the compound reach optimal spread and conductivity.

Which components can be upgraded later and what are their current specifications?

The two 32 GB DDR5 5600 MHz modules and the 4 TB M.2 PCIe 4.0 x4 NVMe SSD are socketed and replaceable; the RTX 5080 with 16 GB GDDR7 and the Ryzen processor are soldered.

What thermal limit appears first during sustained loads on the 18 inch UHD+ 120 Hz Mini LED panel?

The GPU temperature ceiling triggers first; the Gelid GC Extreme application and the vapour chamber keep the RTX 5080 below throttle point longer than stock paste would.

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